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HomeMy WebLinkAbout1202_Burke_EastBurke_MSWLF_GW_FID1357482_20190904pENR USE ONLY ❑Paper Report ❑Electronic Data - Email CD (data loaded: Yes / No Doc/Event #: NC DENR Environmental Monitoring Division of Waste Management - Solid Waste Reporting Form Notice: This form and any information attached to it are "Public Records" as defined in NC General Statute 132-1. As such, these documents are available for inspection and examination by any person upon request (NC General Statute 132-6) Instructions: Prepare one form for each individually monitored unit. Please type or print legibly. Attach a notification table with values that attain or exceed NC 2L groundwater standards or NC 2B surface water standards. The notification must include a preliminary analysis of the cause and significance of each value. (e.g. naturally occurring, off -site source. pre-existing condition, etc.). Attach a notification table of any groundwater or surface water values that equal or exceed the reporting limits. Attach a notification table of any methane gas values that attain or exceed explosive gas levels This includes any structures on or nearby the facility (NCAC 13B .1629 (4)(a)(i). Send the original signed and sealed form, any tables, and Electronic Data Deliverable to: Compliance Unit, NCDENR-DWM, Solid Waste Section, 1646 Mail Service Center, Raleigh, NC 27699-1646. Solid Waste Monitoring Data Submittal Information Name of entity submitting data (laboratory, consultant, facility owner): LaBella Associates (Joyce Engineering) Contact for questions about data formatting. Include data preparer's name, telephone number and E-mail address: Name: G. Van Ness Burbach, Ph.D., P.G. Phone: (336) 323-0092 E-mail: vburbach@labellapc.com NC Landfill Rule: Actual sampling dates (e.g., Facility name: Facility Address: Facility Permit # (.0500 or. 1600) October 20-24, 2006) Burke Co. - East Burke Landfill Rhodiss Road 12-02 .0500 May 6, 2019 Rhodiss, NC July 23-24, 2019 Environmental Status: (Check all that apply) ❑ Initial/Background Monitoring �X Detection Monitoring Assessment Monitoring ❑ Corrective Action of data submitted: (Check all that apply) Groundwater monitoring data from monitoring wells Methane gas monitoring data Groundwater monitoring data from private water supply wells Corrective action data (specify) Leachate monitoring data Surface water monitoring data Other(specify) Notification attached? No. No groundwater or surface water standards were exceeded. X Yes, a notification of values exceeding a groundwater or surface water standard is attached It includes a list of groundwater and surface water monitoring points, dates, analytical values, NC 2L groundwater standard, NC 2B surface water standard or NC Solid Waste GWPS and preliminary analysis of the cause and significance of any concentration. Yes, a notification of values exceeding an explosive methane gas limit is attached. It includes the methane monitoring points, dates, sample values and explosive methane gas limits Certification To the best of my knowledge, the information reported and statements made on this data submittal and attachments are true and correct. Furthermore, I have attached complete notification of any sampling values meeting or exceeding groundwater standards or explosive gas levels, and a preliminary analysis of the cause and significance of concentrations exceeding groundwater standards. I am aware that there are significant penalties for making any false statement, representation, or certification including the possibility of a fine and imprisonment. G. Van Ness Burbach. Ph.D., P.G. Sr. Technical Consultant (336) 323-0092 Facilityleyfes r�jive L4ne (Print) Title (Area Code) Telephone Number Affix NC Lj /Professional Geologist Seal Q% O//�j UAROl/GAS J , y Signature 2211 W. Meadowview Rd.. Ste. 101 Greensboro, NC 27407 Facility Representative Address C-0782 NC PE Firm License Number (if applicable effective May 1, 2009) Revised 6/2009 SEAL 1349 :,Gy G'FOL0 �Qc? SS LaBeRa Powered by oartnershio. September 3, 2019 Jaclynne Drummond Compliance Hydrogeologist NC Department of Environmental Quality Division of Waste Management - Solid Waste Section 2090 US Highway 70, Swannanoa, NC 28778 RE: Burke County, East Burke Landfill, Permit Number 12-02 May 2019 Semiannual Water Quality Monitoring Report Project No. 2192621 Dear Ms. Drummond: On behalf of Burke County, we are submitting the May 2019 Semiannual Water Quality Monitoring Report in electronic format, as well as a copy of the Environmental Monitoring Form and the laboratory EDD's for the East Burke Landfill, Permit # 12-02. This report completes the first semiannual compliance monitoring event of 2019 as required by the North Carolina Division of Waste Management, Solid Waste Section. If we can provide any additional information please call me at (336) 323-0092. Respectfully submitted, LaBella Associates Van Burbach, Ph.D., P.G. Sr. Technical Consultant cc: Miles Champion, Burke County 2211 W. Meadowview Road #sos I Greensboro, NC 27407 1 p (336) 323-0092 www.LabeLLapc.com Prepared For: BOARD OF COMMISSIONERS COUNTY OF BURKE P.O. BOX 1486 MORGANTON, NORTH CAROLINA 28680 u■'��r. k k a 'pFAf Ck &il Submitted by: LaBella Associates (Joyce Engineering) 2211 West Meadow/view Rd. Suite 1o1 Greensboro, NC 27407 (336) 323-00g2 NC License No. C-0782 LaBeRa Powered by partnership. MAY 2019 SEMIANNUAL WATER QUALITY MONITORING REPORT EAST BURKE LANDFILL Permit No. 12-02 SEPTEMBER 2019 PROJECT NO. 2192621 May 2019 Semiannual Water Quality Monitoring Report East Burke Landfill, Permit No. 12-02 Burke County, North Carolina TABLE OF CONTENTS 1.0 INTRODUCTION.................................................................................................................1 1.1 Site Information................................................................................................................1 1.2 Regulatory Status.............................................................................................................1 2.0 FACILITY MONITORING PROGRAM...................................................................................1 2.1 Groundwater Monitoring Program...................................................................................1 2.2 Surface Water Monitoring Program.................................................................................2 3.0 MAY 2019 SEMIANNUAL SAMPLING EVENT...................................................................2 3.1 Field Work.........................................................................................................................2 3.2 Laboratory Analysis and Quality Control..........................................................................3 4.0 HYDROGEOLOGY..............................................................................................................3 5.0 DATA ANALYSIS................................................................................................................4 5.1 Analytical Results and Comparison to Standards...........................................................5 5.1.1 Groundwater................................................................................................................5 5.1.2 Surface Water............................................................................................................. 6 5.1.3 Resampling Event.......................................................................................................6 6.0 CONCLUSIONS..................................................................................................................6 7.0 REFERENCES....................................................................................................................7 May 2019 Semiannual Water Quality Monitoring Report LaBella Associates Burke County - East Burke Landfill, Permit No. 12-02 September 2019 May 2019 Semiannual Water Quality Monitoring Report East Burke Landfill, Permit No. 12-02 Burke County, North Carolina TABLE OF CONTENTS CONTINUED Tables Table 1 May 2019 Groundwater Elevations Table 2 May 2019 Estimated Hydraulic Gradients and Velocities Table 3 May 2019 Detections Table 4 May 2019 Exceedances Table 5 May 2019 Field Parameters Figure Figure 1 Site Location Map Drawing Drawing 1 May 2019 Groundwater Potentiometric Surface Map Appendix Appendix 1 Laboratory Analytical Reports and Field Logs Appendix 2 Historical Data Table A2-1 Historical Groundwater Elevations Table A2-2 Historical Groundwater Constituents Table A2-3 Historical Surface Water Constituents Table A2-4 Historical Groundwater Field Parameters Table A2-5 Historical Surface Water Field Parameters May 2019 Semiannual Water Quality Monitoring Report LaBella Associates Burke County - East Burke Landfill, Permit No. 12-02 September 2019 1.0 INTRODUCTION 1.1 Site Information The East Burke Landfill, Permit No. 12-02, is located in Burke County, North Carolina as shown on Figure 1. The landfill was operated by Burke County as a municipal solid waste (MSW) landfill between 1972 and 1988 and has been closed to the reception of waste since 1988. 1.2 Regulatory Status The landfill is regulated under Rules .0500 and .0600 of the North Carolina Solid Waste Management Regulations (NCSWMR) for MSW landfills closed prior to October 9, 1993. The County monitors' groundwater at the landfill in accordance with criteria set forth in Rule .0600 of the NCSWMR. In March 1995, the North Carolina Department of Environment and Natural Resources (NCDENR), now the Department of Environmental Quality (NCDEQ), requested that the facility perform additional site contamination investigation activities due to the quantified detections of organic constituents in the groundwater on site. In response to this request a Water Quality Assessment Plan for the East Burke Landfill was submitted to the Solid Waste Section (SWS) in September of 1995. Updates on Groundwater Assessment Activities were submitted to NCDENR SWS in June 2003 and August 2003. 2.0 FACILITY MONITORING PROGRAM 2.1 Groundwater Monitoring Program Groundwater monitoring at the East Burke Landfill is completed in accordance with the monitoring requirements of Rule .0600 of the NCSWMR. Groundwater samples are collected semiannually. The current compliance network consists of the following monitoring wells: MW-1 (background), MW-2, MW-3, and AMW-1. A site plan indicating the facility and waste boundaries in addition to monitoring well locations can be found in Drawing 1. All monitoring wells are monitored for the NC Appendix I list of constituents. Monitoring Date Classification Monitoring Total Depth Lithology of Screened Well Installed Program from TOC (ft) Interval MW-1 Unknown Background .0600 50.55 Bedrock (Est.) MW-2 Unknown Compliance .0600 71.05 Bedrock (Est.) MW-3 Unknown Compliance .0600 32.50 Saprolite (Est.) AMW-1 Apr. 1, 2003 Compliance .0600 7.25 Saprolite May 2019 Semiannual Water Quality Monitoring Report LaBella Associates Burke County - East Burke Landfill, Permit No. 12-02 September 2019 1 2.2 Surface Water Monitoring Program Surface water monitoring at the East Burke Landfill is completed in accordance with the monitoring requirements of Rule .0600 of NCSWMR. Surface water samples are collected semiannually and are analyzed for the NC Appendix I constituents plus 1,4-dioxane. The surface water monitoring network consists of two sampling points: SW-1 located upstream from the sediment pond, and SW-2 located downstream from MW-3 and AMW-1. The approximate locations of the sampling points are shown on Drawing 1. Surface Point Classification Monitoring Program SW-1 SW-2 Compliance Compliance .0600 .0600 3.0 MAY 2019 SEMIANNUAL SAMPLING EVENT 3.1 Field Work On May 6, 2019, personnel from LaBella Associates (formerly Joyce Engineering) visited the East Burke Landfill to obtain water levels to the nearest 0.01 foot, purge, and sample monitoring wells MW-1, MW-2, MW-3, and AMW-1, and sample the two surface monitoring points, SW-1 and SW-2. On July 23-24, 2019, personnel from LaBella Associates were on site again to resample monitoring wells MW-2 and MW-3. Monitoring wells were purged and sampled using disposable bailers during the May 2019 sampling event. Measurements of temperature, pH, specific conductivity, dissolved oxygen, oxidation reduction potential, and turbidity were recorded in the site log book prior to purging, after each purge volume, and during sampling. Prior to sampling, laboratory -supplied containers were prepared with the following information: • Monitoring well number (completed by field personnel); • Date and time of sample collection (completed by field personnel); • Initials of sampling personnel (completed by field personnel); • Project name and number (completed by the laboratory); • Chemical preservative (completed by the laboratory); and • Requested chemical analysis (completed by the laboratory). Groundwater samples from each monitoring well were collected directly from the disposable bailers in the provided laboratory containers either immediately after purging or within 24 hours of the final purge volume. Immediately after collection, the samples were placed on ice in a laboratory -provided cooler. Copies of the field data logs are provided in Appendix 1. The surface water monitoring points SW-1 and SW-2 were collected directly from stream by lowering a clean, unpreserved sample container into the stream flow and dispensing the water into laboratory -prepared sample containers. Care was taken to avoid sample -induced turbidity. At the time of sampling, surface water was also measured for May 2019 Semiannual Water Quality Monitoring Report LaBella Associates Burke County - East Burke Landfill, Permit No. 12-02 September 2019 2 temperature, pH, specific conductivity, dissolved oxygen, oxidation reduction potential, and turbidity and recorded in the field data log. Immediately after collection, the samples were placed on ice in a laboratory -provided cooler. Copies of the field data logs are presented in Appendix 1. 3.2 Laboratory Analysis and Quality Control The May 6, 2019, groundwater and surface water samples and the July 23-24, 2019, groundwater samples were submitted to Pace Analytical Services, Inc. of Huntersville, North Carolina under chain -of -custody control for analysis. LaBella requested a Level II data report for the final laboratory report. The samples were received by the laboratory on May 9, 2019, in good condition, properly preserved, and within analysis hold times. In addition to samples collected for compliance monitoring at the East Burke Landfill, a Field Blank was collected by LaBella Associates personnel as part of the May 2019 sampling event. A Trip Blank was also prepared by the laboratory to accompany the volatile samples during shipment. The Field Blank was analyzed for the NC Appendix I list compounds and 1,4-dioxane while the Trip Blank was analyzed for NC Appendix I VOCs and 1,4-dioxane. Upon receipt of the laboratory data package, the data was reviewed by LaBella personnel for the following: • General typographical errors; • Correct analyses performed and within method specified hold times; • Correct analyte lists; • Biased data results based on Surrogate Recoveries, Matrix Spike, Matrix Spike Duplicate, and Laboratory Control Samples; • Blank qualified data (B-flags); • Detections above the Method Reporting Limits (MRL); • Detections above the 15A NCAC2L (NC2L) Groundwater Standards, NC Interim Maximum Allowable Concentrations (IMACs), 15A NCAC213 (NC2B) Surface Water Standards, or NC Protective Values (NCPV); and • Detections that are above historical levels. 4.0 HYDROGEOLOGY The surFicial aquifer is believed to include the regolith and the underlying fractured metamorphic bedrock. The regolith consists of alluvium, residual soils, saprolite, and variably fractured and weathered layered metamorphic rock. In this regard, regolith behaves similar to unweathered bedrock, except that fractures are more numerous and better connected in the regolith, and will tend to have more isotropic hydraulic properties. Groundwater discharges into an unnamed tributary to Lake Rhodhiss, northeast of the landfill. A groundwater potentiometric surface map, developed from static water level data obtained on May 6, 2019 is presented as Drawing 1. May 2019 Semiannual Water Quality Monitoring Report LaBella Associates Burke County - East Burke Landfill, Permit No. 12-02 September 2019 3 Depth to groundwater was measured in the compliance monitoring wells at the site prior to sampling. The groundwater elevations were calculated relative to the surveyed measuring point (top of casing) for each monitoring well to ±0.01 ft. The groundwater elevations are summarized in Table 1 for the May 2019 monitoring event. Historical groundwater elevations are summarized in Table A2-1. Groundwater flow beneath the waste management unit is primarily to the northeast. Estimated horizontal groundwater gradients (i) from the May 2019 groundwater elevations are presented in Table 2. The horizontal gradient (i) calculated for the facility from the data was 0.0670. Linear groundwater flow velocities (V) was estimated using the following modified Darcy equation: V = Ki/ne, where: V = average linear velocity (feet per day - ft/day); K = hydraulic conductivity (ft/day); i = horizontal hydraulic gradient; and ne = effective porosity. Hydraulic conductivity (K) was estimated at 3.28 ft/day based on slug tests from a nearby site (John's River Landfill). An effective porosity (ne) of 20% was estimated based on typical values for piedmont aquifers. The estimated linear groundwater flow velocity under the facility is 401 ft/year (Table 2). Because of our conservative estimate of effective porosity, actual groundwater velocities may be significantly less than those calculated. Also, the modified Darcy equation makes the simplified assumptions of a homogeneous and isotropic aquifer, which may yield inaccurate results when applied to heterogeneous and/or anisotropic conditions such as are believed to exist at this site. Migration of groundwater contaminants are expected to follow the general groundwater flow paths and there are no known preferred pathways or barriers to groundwater flow that could significantly affect plume migration or the effectiveness of the groundwater monitoring network to monitoring plume migration. The current groundwater monitoring network remains sufficient for monitoring the groundwater at this facility. 5.0 DATA ANALYSIS The final results from the May 2019 sampling event were received on May 21, 2019, for all monitoring wells (MW-1, MW-2, MW-3, and AMW-1) and surface water monitoring locations (SW-1 and SW-2). All analytical results can be found in Appendix 1. Table 3 summarizes the constituents detected at concentrations above the MDL in all monitoring well and surface water samples for the May 2019 event. Constituents in exceedance of the appropriate standards are summarized in Table 4. Field Parameters for the May 2019 sampling event are summarized in Table 5. May 2019 Semiannual Water Quality Monitoring Report LaBella Associates Burke County - East Burke Landfill, Permit No. 12-02 September 2019 4 Analytical results from monitoring wells were compared directly to the North Carolina Groundwater Standards found in 15A NCAC 02L.0202 (NC2L Standards) or the NC Interim Maximum Allowable Concentrations (IMACs) for constituents with no listed NC2L Standard. Note that estimated concentrations below the Method Reporting Limit (MRL) are not considered exceedances of the standard, even if the estimated value is higher than the standard. Analytical results for surface water samples were compared directly to either the Freshwater Aquatic Life Surface Water Standards or Fish Consumption Surface Water Standards (whichever was lower) found in 15A NCAC 02B (NC2B Standards). For metals which have hardness -dependent NC213 Standards, the hardness of the sample collected was used to calculate the NC213 standard. For constituents which have NC213 standards for both chronic and acute exposure, the chronic exposure standard was used. For constituents with no NC2B standards, the results were compared to either the NC protective standard (NCPS) or the EPA Nationally Recommended Water Quality Standard (NRWQS). Note that estimated concentrations below the MRL are not considered exceedances of the standard, even if the estimated value is greater than the standard. 5.1 Analytical Results and Comparison to Standards 5.1.1 Groundwater Inorganic constituents detected at quantified concentrations in groundwater samples during the May 2019 sampling event are listed in Table 3. All concentrations are reported in micrograms per liter (pg/L). Concentrations with a "Y' are greater than the method detection limit (MDL) but less than the method reporting limit (MRL), and are considered to be estimated. Bold values indicate concentrations above the NC 2L or IMAC in the groundwater samples. Historically detected constituents in groundwater can be found in Table A2-2. Historical groundwater field parameters can be found in Table A2-4. The inorganic constituents detected above the MRL include: arsenic (MW-2), barium (MW-1, MW-2, MW-3, AMW-1), cobalt (MW-1, MW-2, MW-3), nickel (MW-1, MW-2, MW-3), and thallium (MW-1, MW-2, MW-3, AMW-1). The inorganic constituents detected at quantified concentrations in exceedance of their respective NC 2L or IMAC include: arsenic (MW-2), cobalt (MW-1, MW-2, and MW-3), and thallium (MW-2 and MW-3). The organic constituents detected above the MRL include: benzene (MW-2, MW-3), chlorobenzene (MW-2, MW-3), 1,4-dichlorobenzene (MW-2, MW-3), chloroethane (MW-2), 1,1-dichloroethene (MW-3), cis-1,2-dichloroethene (MW-1, MW-3, AMW-1), 1,2-dichloropropane (MW-2), 1,4-dioxane (MW-2, MW-3), tetrachloroethene (MW-3), trichloroethene (MW-3), vinyl chloride (MW-3), xylene (MW-2). The organic constituents detected at quantified concentrations in exceedance of their respective NC 2L or IMAC standard include: benzene (MW-2, MW-3), 1,4-dichlorobenzene (MW-2), 1,2-dichloropropane (MW-2), 1,4-dioxane (MW-3), tetrachloroethene (MW-3), trichloroethene (MW-3), vinyl chloride (MW-3). In general, these detections are consistent May 2019 Semiannual Water Quality Monitoring Report LaBella Associates Burke County - East Burke Landfill, Permit No. 12-02 September 2019 5 with historical data for the inorganic and organic constituents, with the exception of the exceedances of benzene in monitoring wells MW-2 and MW-3 and tetrachloroethene and 1,2-dichloropropane in MW-3. 5.1.2 Surface Water During the May 2019 sampling event, the constituents detected above the MRL include: barium (SW-1, SW-2), cobalt (SW-2), thallium (SW-2), and 1,4-dioxane (SW-1, SW-2). Cobalt was detected above its respective NCPV in surface water monitoring point SW-2. Historical surface water data can be found in Table A2-3. Historical surface water field parameters can be found in Table A2-5. 5.1.3 Resampling Event On July 23-24, 2019, LaBella Personnel collected detection verification samples from monitoring well MW-2 for benzene, and from monitoring well MW-3 for benzene, 1,2-dichloropropane, and tetrachloroethene. Both exceedances of benzene were refuted by the results of the resampling event. The exceedances of tetrachloroethene and 1,2-dichloropropane in monitoring well MW-3 were also refuted by the results of the resampling event. 6.0 CONCLUSIONS 1,4-Dioxane was detected in exceedance of groundwater protection standards in monitoring well MW-3. 1,4-Dioxane analyses were required by the NCDEQ for the first time during the previous semiannual groundwater monitoring event, and the NCDEQ has not yet issued a policy concerning regulatory response to 1,4-dioxane exceedances. We recommend continuing to sample for 1,4-dioxane in order to establish possible trends and/or seasonal variability. 1,4-Dioxane was detected in surface water samples SW-1 and SW-2. There is no NC213 surface water standard for 1,4-dioxane; however, there is a NC Protective Value for 1,4-dioxane, which is 80 pg/I for non -water -supply surface waters. None of the 1,4-dioxane detections exceeded the NCPV. Cobalt was detected in SW-2 in exceedance of the NCPV. According to historical groundwater data, inorganic and organic constituents detected above the NC21- or IMAC in groundwater samples collected during the May 2019 sampling event are consistent with previous events with the exception of the benzene exceedances in MW-2 and MW-3 and tetrachloroethene and 1,2-dichloropropane in MW-3, all of which were refuted by resample data. Based on the results of this groundwater monitoring event, the groundwater monitoring network remains adequate to monitor groundwater at the site. The next semiannual sampling event is tentatively scheduled for November 2019. May 2019 Semiannual Water Quality Monitoring Report LaBella Associates Burke County - East Burke Landfill, Permit No. 12-02 September 2019 6 7.0 REFERENCES North Carolina Dept. Environment, Health, and Natural Resources (NCDEHNR), 1995, N.C. Water Quality Monitoring Guidance Document for Solid Waste Facilities. RCRA Ground Water Monitoring Technical Enforcement Guidance Document (TEGD), 1986. May 2019 Semiannual Water Quality Monitoring Report LaBella Associates Burke County - East Burke Landfill, Permit No. 12-02 September 2019 7 TABLES Table 1 May 2019 Groundwater Elevations Table 2 May 2019 Estimated Hydraulic Gradients and Velocities Table 3 May 2019 Detections Table 4 May 2019 Exceedances Table 5 May 2019 Field Parameters TABLE 1: May 2019 Groundwater Elevations Depth to Groundwater TOC Elevation Well Depth Location Groundwater Lithology Elevation (Ft AMSL) (Ft BTOC) (Ft BTOC) (Ft AMSL) MW-1 1147 36.95 Saprolite 50.55 1110.05 MW-2 1096.5 54.47 Saprolite 71.05 1042.03 MW-3 1039 9.29 Bedrock 32.50 1029.71 AMW-1 1021 4.08 Bedrock 7.30 1016.92 Notes: TOC = Top of casing Ft = feet BTOC = Below TOC BGS = Below ground surface AMSL = Above mean sea level Burke County -East Burke Permit No. 12-02 Labella Associates TABLE 2: May 2019 Estimated Hydraulic Gradients and Velocities LINEAR GRADIENT FLOW LINE FLOW GROUNDWATER HORIZONTAL HYDRAULIC EFFECTIVE VELOCITY CALCULATION LENGTH ELEVATION CONDUCTIVITY K POROSITY DIRECTION GRADIENT i V SEGMENT (ft) (ft) (ft/day) n e (ft/year) 1100 i 1 1,194 NE 0.0670 3.28 0.20 401 1020 Notes: The mean of K estimates from individual well slug tests from the Burke County John's River Facility was used to calculate the hydraulic conductivity. Velocity: V= Kiln e; assumes homogeneous isotropic porous aquifer and an effective porosity of 20% (0.20). Burke County -East Burke Permit No. 12-02 LaBella Associates TABLE 3: May 2019 Detections Parameter MDL MRL NC 2L/ IMAC* GW Upg adient GW Downgradient MW-1 MW-2 MW-2* MW-3 MW-3* AMW-1 Arsenic 5 10 10 5.0 J 20.4 ND ND Barium 2.5 5 700 56.3 40.6 113 50.8 Cobalt 2.5 5 1* 10.6 74.7 27.2 ND Copper 2.5 10 1,000 ND 3.2 J ND ND Nickel 2.5 5 100 5.5 62.0 9.7 ND Thallium 0.06 0.1 .28* 0.13 0.42 0.91 0.17 Zinc 5 10 1,000 ND 8.0 J - ND - ND Benzene 0.25 1 1 0.24 J 4.7 0.95 J 1.8 0.63 J ND Chlorobenzene 0.23 1 50 ND 35.5 - 8.9 - ND 1,2-Dichlorobenzene 0.49 1 20 ND 0.88 J ND ND 1,4-Dichlorobenzene 0.33 1 6 0.74 J 14.0 4.9 ND Chloroethane 0.52 1 3000 ND 1.7 ND ND 1,1-Dichloroethane 0.32 5 6 ND 0.46 J 5.8 ND cis-1,2-Dichloroethene 0.19 1 70 1.6 ND 18.0 1.4 1,2-Dichloropropane 0.6 1 0.6 ND ND 1.0 ND ND 1,4-Dioxane (p-Dioxane) 1.2 2 3 ND 2.7 33.1 1.9 J Tetrachloroethene 0.78 1 0.7 ND ND 11.3 ND ND Trichloroethene 0.34 1 3 ND ND 6.0 ND Vinyl Chloride 0.6 1 0.03 ND ND 1.4 ND Xylene(Total) 1.5 2 1 500 1 ND 17.2 ND ND Burke County -East Burke Permit No. 12-02 1 of 2 LaBella Associates TABLE 3: May 2019 Detections Parameter MDL MRL NC2B SW-1 SW-2 Barium 2.5 5 21,000^ 41.4 47.9 Beryllium 0.5 1 NE ND 0.86 J Cadmium 0.5 1 NE ND 1.2 B Cobalt 2.5 5 4^ 3.5 J 7.8 Copper 2.5 5 3.09 ND 2.8 J Lead 2.5 5 0.63 N D 2.7 J Nickel 2.5 5 13.27 2.9 J 4.7 J Thallium 0.06 0.1 0.47^^ 0.072 J 0.10 Hardness (total) 662 662 NE 19900 28800 1,4-Dioxane (p-Dioxane) 1.2 2 80^ 7.4 9.2 Chloroform 1 0.58 1 1 1 NE I ND 0.72 J Notes: All results are in micrograms per liter (pg/L). MDL = Method Detection Limit MRL = Method Reporting Limit NC21L = NC Groundwater Standard from 15A NCAC 2L.0202 *IMAC = NC Interim Maximum Allowable Concentration NC2B = NC Surface Water Standard from 15A NCAC 26 = NC Protective Value ^^ = EPA NRWQC (Naturally Recommended Water Quality Criteria) NE = Not Established ND = Not detected above the MDL J = Estimated value below the MRL * = Sample collected during July 23-24, 2019 resampling event = Sample not analyzed for this constituent Bold results are exceedances of the applicable standards. Burke County -East Burke Permit No. 12-02 2 of 2 La Bella Associates TABLE 4: May 2019 Exceedances Parameter MDL MRL NC2L IMAC* NCPV** GW Upgradient GW Downgradient Surface Water MW-1 MW-2 MW-2A MW-3 MW-3A SW-2 Arsenic 5 10 10 -- 20.4 -- -- -- -- Cobalt 2.5 5 1*/4** 10.6 74.7 -- 27.2 -- 7.8 Thallium 0.06 0.1 0.28* -- 0.42 -- 0.91 -- -- 1,2-Dichloropropane 0.6 1 0.6 -- -- -- 1.0 ND -- 1,4-Dichlorobenzene 0.33 1 6 -- 14.0 -- -- -- -- 1,4-Dioxane 1.2 2 3 -- -- -- 33.1 -- Benzene 0.25 1 1 -- 4.7 0.95 J 1.8 0.63 J -- Tetrachloroethene 0.78 1 0.7 -- -- -- 11.3 ND -- Trichloroethene 0.34 1 3 -- -- -- 6.0 -- -- Vinyl Chloride 1 0.6 1 1 1 0.03 1 1.4 -- -- Notes: All results are in micrograms per liter (pg/L). MDL = Method Detection Limit MRL = Method Reporting Limit NC21- = NC Groundwater Standard from 15A NCAC 2L.0202 *IMAC = NC Interim Maximum Allowable Concentrations **= NC Protective Value (for surface water) ^ = Sample collected during 7/23-24/2019 resampling event Burke County- East Burke Landfill Permit No. 12-02 ND = not detected above the MDL J = Estimated value below the MRL LaBella Associates TABLE 5: May 2019 Field Parameters Parameter Units Collect Date GW Upgradient GW Downgradient Surface Water MW-1 MW-2 MW-2* MW-3 MW-3* AMW-1 SW-1 SW-2 pH S.U. 5/6/2019 5.56 5.84 5.63 5.58 5.19 5.73 6.26 6.12 Temperature °C 5/6/2019 17.3 17.4 18.6 16.8 16.7 15.6 16.5 16.6 Conductivity pS/cm 5/6/2019 104.0 239.9 454.7 266.3 464.7 118.9 127.6 131.2 Dissolved Oxygen mg/L 5/6/2019 1.29 2.31 2.93 1.35 0.69 3.28 5.90 6.32 Oxidation Reduction Potential my 5/6/2019 96.9 69.6 119.6 176.0 147.9 146.1 145.3 155.3 Turbidity NTU 5/6/2019 1.42 4.07 3.20 5.63 4.41 11.5 15.2 14.4 Static Water Level Ft 5/6/2019 36.95 54.47 53.98 9.29 9.93 4.08 - Well Depth Ft 1 50.55 71.05 71.05 32.5 32.50 7.30 - - Notes: °C = degrees Centigrade S.U. = Standard Units pS/cm = microsemens per cm NTU = Nephelometric Turbidity Units Ft = feet *=Sample collected during 7/23-24/2019 resampling event Burke County -East Burke LaBella Associates Permit No. 12-02 FIGURE Figure 1 Site Location Map 0 . mxmw lilk/ � 7A _ ON ✓J J 0 2211 WEST MEADOWVIEW ROAD SCALE PRoJEcT No. EAST BURKE LANDFILL x FIGURE N0. 1 I ^�GREENSBORO, N.C. 27407 u r `� 1M2000' 277 = PHONE: (336) 323-0092 SITE LOCATION MAP n ENGINEERING ©2017 Joyce Engineering, Inc. All dgM1is reserved. DRAWING Drawing 1 May 2019 Groundwater Potentiometric Surface Map 1020 1:1 - MW-1 ELEV LEGEND EXISTING 100' TOPOGRAPHIC CONTOUR EXISTING 20' TOPOGRAPHIC CONTOUR GROUNDWATER SURFACE CONTOUR [FEET ABOVE MEAN SEA LEVEL (AMSL)] PROPERTY LINE GROUNDWATER FLOW PATHWAY USED TO CALCULATE HYDRAULIC GRADIENT EXISTING ROAD APPROXIMATE LIMITS OF WASTE CENTERLINE OF STREAM COMPLIANCE WELL LOCATION AND IDENTIFICATION WITH STATIC WATER LEVEL ELEVATION (FEET AMSL) SURFACE MONITORING POINT LOCATION AND IDENTIFICATION SEGMENT USED FOR GRADIENT CALCULATION FLOW PATH LENGTH Z� 1,194 LF NOTES � 1. TOPOGRAPHIC CONTOUR INTERVAL = 20 FEET. I2. GROUNDWATER SURFACE CONTOUR INTERVAL = 10 FEET. \ 3. STATIC WATER LEVELS WERE MEASURED ON MAY 6, 2019. 4. GROUNDWATER CONTOURS BASED ON LINEAR INTERPOLATION BETWEEN AND EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELD CONDITIONS. 1 / FIELD DETERMINED EDGE OF WASTE � I 1 1170.05 R / `>� �1100 I� GP-5 o I� Rr� 161, SR 2300 FRIENDSHIP METHODIST CHURCH / 1 GRAPHIC SCALE 0 150 300 (FEET) Dr2=3 LaBeLLa Powered by partnership. 9731-F SOUTHERN PINE BLVD CHARLOTTE, NC 28273 PHONE: (704) 817-2037 labellapc.com GO�S� LNP,\ L © 2019 LaBella Associates EAST BURKE LANDFILL BURKE COUNTY, NORTH CAROLINA NO: DATE: DESCRIPTION: Revisions PROJECT NUMBER: 2181871 DRAWN BY: RH REVIEWED BY: MV ISSUED FOR: GROUNDWATER REPORT DATE: 07/18/19 DRAWING NAME PERMIT NO. 12-02 GROUNDWATER POTENTIOMETRIC SURFACE MAP - MAY 65 2019 DRAWING NUMBER: 1 APPENDICES Appendix 1 Laboratory Analytical Reports and Field Logs Appendix 2 Historical Data APPENDIX 1 Laboratory Analytical Reports and Field Logs aceAnalytical _pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 May 21, 2019 Mr. Van Burbach Joyce Engineering -Greensboro 2211 West Meadowview Rd Boone Bldg, Suite 101 Greensboro, NC 27407 RE: Project: BURKE CO. EAST BURKE Pace Project No.: 92428709 Dear Mr. Burbach: Enclosed are the analytical results for sample(s) received by the laboratory on May 09, 2019. The results relate only to the samples included in this report. Results reported herein conform to the most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual, where applicable, unless otherwise noted in the body of the report. If you have any questions concerning this report, please feel free to contact me. Sincerely, ��i Flo _ _.1I , .�: Nicole Gasiorowski nicole.gasiorowski@pacelabs.com (704)875-9092 Project Manager Enclosures cc: Van Burbach, Joyce Engineering -NC Gretta Eller, LaBella Associates, D.P.C. Daniel Girdner, LaBella Associates, D.P.C. Rochelle Mesubed, Joyce Engineering Miguel Vazquez, Joyce Engineering REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 1 of 30 aceAnalytical —pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Project: BURKE CO. EAST BURKE Pace Project No.: 92428709 Atlanta Certification IDs 110 Technology Parkway Peachtree Corners, GA 30092 Florida DOH Certification #: E87315 Georgia DW Inorganics Certification #: 812 Georgia DW Microbiology Certification #: 812 Charlotte Certification IDs 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 Louisiana/NELAP Certification # LA170028 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 Asheville Certification IDs 2225 Riverside Drive, Asheville, NC 28804 Florida/NELAP Certification #: E87648 Massachusetts Certification #: M-NC030 North Carolina Drinking Water Certification #: 37712 CERTIFICATIONS North Carolina Certification #: 381 South Carolina Certification #: 98011001 Virginia Certification #: 460204 South Carolina Certification #: 99006001 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Virginia/VELAP Certification #: 460221 North Carolina Wastewater Certification #: 40 South Carolina Certification #: 99030001 Virginia/VELAP Certification #: 460222 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 2 of 30 aceAnalytical —pacelabsxom Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 SAMPLE SUMMARY Project: BURKE CO. EAST BURKE Pace Project No.: 92428709 Lab ID Sample ID Matrix Date Collected Date Received 92428709001 1202-MW1 Water 05/06/19 08:50 05/09/19 09:31 92428709002 1202-MW2 Water 05/06/19 10:40 05/09/19 09:31 92428709003 1202-MW3 Water 05/06/19 12:09 05/09/19 09:31 92428709004 1202-AMW1 Water 05/06/19 12:45 05/09/19 09:31 92428709005 1202-SW1 Water 05/06/19 11:35 05/09/19 09:31 92428709006 1202-SW2 Water 05/06/19 12:40 05/09/19 09:31 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 3 of 30 aceAnalytical —pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 SAMPLE ANALYTE COUNT Project: Pace Project No.: BURKE CO. EAST BURKE 92428709 Analytes Lab ID Sample ID Method Analysts Reported Laboratory 92428709001 1202-MW1 EPA 601 OD DS 14 PASI-A EPA 6020E JOR 1 PASI-A EPA 8260D LIH 53 PASI-GA EPA 8260D Mod. SAS 3 PASI-C 92428709002 1202-MW2 EPA 601 OD DS 14 PASI-A EPA 6020E JOR 1 PASI-A EPA 8260D LIH 53 PASI-GA EPA 8260D Mod. SAS 3 PASI-C 92428709003 1202-MW3 EPA 601 OD DS 14 PASI-A EPA 6020E JOR 1 PASI-A EPA 8260D LIH 53 PASI-GA EPA 8260D Mod. SAS 3 PASI-C 92428709004 1202-AMW1 EPA 601 OD DS 14 PASI-A EPA 6020E JOR 1 PASI-A EPA 8260D LIH 53 PASI-GA EPA 8260D Mod. SAS 3 PASI-C 92428709005 1202-SW1 EPA 601 OD DS 15 PASI-A EPA 6020E JOR 1 PASI-A EPA 8260D LIH 53 PASI-GA EPA 8260D Mod. SAS 3 PASI-C 92428709006 1202-SW2 EPA 601 OD DS 15 PASI-A EPA 6020E JOR 1 PASI-A EPA 8260D LIH 53 PASI-GA EPA 8260D Mod. SAS 3 PASI-C REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 4 of 30 aceAnalytical -pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 SUMMARY OF DETECTION Project: Pace Project No.: BURKE CO. EAST BURKE 92428709 Lab Sample ID Client Sample ID Method Parameters Result Units Report Limit Analyzed Qualifiers 92428709001 1202-MW1 EPA 6010D Arsenic 5.OJ ug/L 10.0 05/20/19 09:27 EPA 6010D Barium 56.3 ug/L 5.0 05/20/19 09:27 EPA 6010D Cobalt 10.6 ug/L 5.0 05/20/19 09:27 EPA 6010D Nickel 5.5 ug/L 5.0 05/20/19 09:27 EPA 6020B Thallium 0.13 ug/L 0.10 05/20/19 23:57 EPA 8260D 1,4-Dichlorobenzene 0.74J ug/L 1.0 05/16/19 22:09 EPA 8260D Benzene 0.24J ug/L 1.0 05/16/19 22:09 EPA 8260D cis-1,2-Dichloroethene 1.6 ug/L 1.0 05/16/19 22:09 92428709002 1202-MW2 EPA 6010D Arsenic 20.4 ug/L 10.0 05/20/19 09:40 EPA 6010D Barium 40.6 ug/L 5.0 05/20/19 09:40 EPA 6010D Cobalt 74.7 ug/L 5.0 05/20/19 09:40 EPA 6010D Copper 3.2J ug/L 5.0 05/20/19 09:40 EPA 6010D Nickel 62.0 ug/L 5.0 05/20/19 09:40 EPA 6010D Zinc 8.OJ ug/L 10.0 05/20/19 09:40 EPA 6020B Thallium 0.42 ug/L 0.10 05/21/19 00:04 EPA 8260D 1,1-Dichloroethane 0.46J ug/L 1.0 05/16/19 22:35 EPA 8260D 1,2-Dichlorobenzene 0.88J ug/L 1.0 05/16/19 22:35 EPA 8260D 1,4-Dichlorobenzene 14.0 ug/L 1.0 05/16/19 22:35 EPA 8260D Benzene 4.7 ug/L 1.0 05/16/19 22:35 EPA 8260D Chlorobenzene 35.5 ug/L 1.0 05/16/19 22:35 EPA 8260D Chloroethane 1.7 ug/L 1.0 05/16/19 22:35 EPA 8260D Xylene (Total) 17.2 ug/L 2.0 05/16/19 22:35 EPA 8260D m&p-Xylene 17.2 ug/L 1.0 05/16/19 22:35 EPA 8260D o-Xylene 0.61 J ug/L 1.0 05/16/19 22:35 EPA 8260D Mod. 1,4-Dioxane (p-Dioxane) 2.7 ug/L 2.0 05/16/19 17:39 92428709003 1202-MW3 EPA 6010D Barium 113 ug/L 5.0 05/20/19 09:43 EPA 6010D Cobalt 27.2 ug/L 5.0 05/20/19 09:43 EPA 6010D Nickel 9.7 ug/L 5.0 05/20/19 09:43 EPA 6020B Thallium 0.91 ug/L 0.10 05/21/19 00:11 EPA 8260D 1,1-Dichloroethane 5.8 ug/L 1.0 05/16/19 23:01 EPA 8260D 1,2-Dichloropropane 1.0 ug/L 1.0 05/16/19 23:01 EPA 8260D 1,4-Dichlorobenzene 4.9 ug/L 1.0 05/16/19 23:01 EPA 8260D Benzene 1.8 ug/L 1.0 05/16/19 23:01 EPA 8260D Chlorobenzene 8.9 ug/L 1.0 05/16/19 23:01 EPA 8260D Tetrachloroethene 11.3 ug/L 1.0 05/16/19 23:01 EPA 8260D Trichloroethene 6.0 ug/L 1.0 05/16/19 23:01 EPA 8260D Vinyl chloride 1.4 ug/L 1.0 05/16/19 23:01 EPA 8260D cis-1,2-Dichloroethene 18.0 ug/L 1.0 05/16/19 23:01 EPA 8260D Mod. 1,4-Dioxane (p-Dioxane) 33.1 ug/L 2.0 05/16/19 17:59 92428709004 1202-AMW1 EPA 6010D Barium 50.8 ug/L 5.0 05/20/19 09:46 EPA 6020B Thallium 0.17 ug/L 0.10 05/21/19 00:26 EPA 8260D cis-1,2-Dichloroethene 1.4 ug/L 1.0 05/16/19 23:27 EPA 8260D Mod. 1,4-Dioxane (p-Dioxane) 1.91 ug/L 2.0 05/16/19 18:18 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 5 of 30 aceAnalytical —pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 SUMMARY OF DETECTION Project: Pace Project No.: BURKE CO. EAST BURKE 92428709 Lab Sample ID Client Sample ID Method Parameters Result Units Report Limit Analyzed Qualifiers 92428709005 1202-SW1 EPA 601 OD Barium 41.4 ug/L 5.0 05/20/19 09:49 EPA 601 OD Cobalt 3.5J ug/L 5.0 05/20/19 09:49 EPA 601 OD Nickel 2.9J ug/L 5.0 05/20/19 09:49 EPA 601 OD Hardness, Total(SM 2340B) 19900 ug/L 662 05/20/19 09:49 EPA 6020B Thallium 0.072J ug/L 0.10 05/21/19 00:29 EPA8260D Mod. 1,4-Dioxane (p-Dioxane) 7.4 ug/L 2.0 05/16/19 18:38 92428709006 1202-SW2 EPA 601 OD Barium 47.9 ug/L 5.0 05/20/19 10:05 EPA 601 OD Beryllium 0.86J ug/L 1.0 05/20/19 10:05 EPA 601 OD Cadmium 1.2 ug/L 1.0 05/20/19 10:05 B EPA 601 OD Cobalt 7.8 ug/L 5.0 05/20/19 10:05 EPA 601 OD Copper 2.8J ug/L 5.0 05/20/19 10:05 EPA 601 OD Lead 2.7J ug/L 5.0 05/20/19 10:05 EPA 601 OD Nickel 4.7J ug/L 5.0 05/20/19 10:05 EPA 601 OD Hardness, Total(SM 2340B) 28800 ug/L 662 05/20/19 10:05 EPA 6020B Thallium 0.10 ug/L 0.10 05/21/19 00:33 EPA 8260D Chloroform 0.72J ug/L 1.0 05/17/19 00:19 EPA8260D Mod. 1,4-Dioxane (p-Dioxane) 9.2 ug/L 2.0 05/16/19 18:58 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 6 of 30 aceAnalytical -pacelabsxom Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: BURKE CO. EAST BURKE Pace Project No.: 92428709 Sample: 1202-MW1 Lab ID: 92428709001 Collected: 05/06/19 08:50 Received: 05/09/19 09:31 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 6010 MET ICP Analytical Method: EPA 601 OD Preparation Method: EPA 301 OA Antimony ND ug/L 5.0 3.9 1 05/17/19 11:00 05/20/19 09:27 7440-36-0 Arsenic 5.OJ ug/L 10.0 5.0 1 05/17/19 11:00 05/20/19 09:27 7440-38-2 Barium 56.3 ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:27 7440-39-3 Beryllium ND ug/L 1.0 0.50 1 05/17/19 11:00 05/20/19 09:27 7440-41-7 Cadmium ND ug/L 1.0 0.50 1 05/17/19 11:00 05/20/19 09:27 7440-43-9 Chromium ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:27 7440-47-3 Cobalt 10.6 ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:27 7440-48-4 Copper ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:27 7440-50-8 Lead ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:27 7439-92-1 Nickel 5.5 ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:27 7440-02-0 Selenium ND ug/L 10.0 5.0 1 05/17/19 11:00 05/20/19 09:27 7782-49-2 Silver ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:27 7440-22-4 Vanadium ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:27 7440-62-2 Zinc ND ug/L 10.0 5.0 1 05/17/19 11:00 05/20/19 09:27 7440-66-6 6020 MET ICPMS Analytical Method: EPA 6020E Preparation Method: EPA 3010A Thallium 0.13 ug/L 0.10 0.060 1 05/17/19 15:02 05/20/19 23:57 7440-28-0 8260D MSV Water, Extend Analytical Method: EPA 8260D 1,1,1,2-Tetrachloroethane ND ug/L 1.0 0.32 1 05/16/19 22:09 630-20-6 1,1,1-Trichloroethane ND ug/L 1.0 0.38 1 05/16/19 22:09 71-55-6 1,1,2,2-Tetrachloroethane ND ug/L 1.0 0.53 1 05/16/19 22:09 79-34-5 1,1,2-Trichloroethane ND ug/L 1.0 0.59 1 05/16/19 22:09 79-00-5 1,1-Dichloroethane ND ug/L 1.0 0.41 1 05/16/19 22:09 75-34-3 1,1-Dichloroethene ND ug/L 1.0 0.72 1 05/16/19 22:09 75-35-4 1,2,3-Trichloropropane ND ug/L 1.0 0.46 1 05/16/19 22:09 96-18-4 1,2-Dibromo-3-chloropropane ND ug/L 2.0 0.55 1 05/16/19 22:09 96-12-8 1,2-Dibromoethane (EDB) ND ug/L 2.0 0.28 1 05/16/19 22:09 106-93-4 1,2-Dichlorobenzene ND ug/L 1.0 0.49 1 05/16/19 22:09 95-50-1 1,2-Dichloroethane ND ug/L 1.0 0.67 1 05/16/19 22:09 107-06-2 1,2-Dichloropropane ND ug/L 1.0 0.60 1 05/16/19 22:09 78-87-5 1,4-Dichlorobenzene 0.74J ug/L 1.0 0.58 1 05/16/19 22:09 106-46-7 2-Butanone (MEK) ND ug/L 5.0 3.2 1 05/16/19 22:09 78-93-3 2-Hexanone ND ug/L 5.0 0.89 1 05/16/19 22:09 591-78-6 4-Methyl-2-pentanone (MIBK) ND ug/L 5.0 0.86 1 05/16/19 22:09 108-10-1 Acetone ND ug/L 25.0 8.2 1 05/16/19 22:09 67-64-1 Acrylonitrile ND ug/L 50.0 2.5 1 05/16/19 22:09 107-13-1 Benzene 0.24J ug/L 1.0 0.20 1 05/16/19 22:09 71-43-2 Bromochloromethane ND ug/L 1.0 0.50 1 05/16/19 22:09 74-97-5 L1 Bromodichloromethane ND ug/L 1.0 0.36 1 05/16/19 22:09 75-27-4 Bromoform ND ug/L 1.0 0.55 1 05/16/19 22:09 75-25-2 Bromomethane ND ug/L 2.0 0.95 1 05/16/19 22:09 74-83-9 Carbon disulfide ND ug/L 10.0 0.79 1 05/16/19 22:09 75-15-0 Carbon tetrachloride ND ug/L 1.0 0.42 1 05/16/19 22:09 56-23-5 Chlorobenzene ND ug/L 1.0 0.53 1 05/16/19 22:09 108-90-7 Chloroethane ND ug/L 1.0 0.52 1 05/16/19 22:09 75-00-3 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 05/21 /2019 12:08 PM without the written consent of Pace Analytical Services, LLC. Page 7 of 30 aceAnalytical -pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: BURKE CO. EAST BURKE Pace Project No.: 92428709 Sample: 1202-MW1 Lab ID: 92428709001 Collected: 05/06/19 08:50 Received: 05/09/19 09:31 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 8260D MSV Water, Extend Chloroform Chloromethane Dibromochloromethane Dibromomethane Ethylbenzene lodomethane Methylene Chloride Styrene Tetrachloroethene Toluene Trichloroethene Trichlorofluoromethane Vinyl acetate Vinyl chloride Xylene (Total) cis-1,2-Dichloroethene cis-1,3-Dichloropropene m&p-Xylene o-Xylene trans-1,2-Dichloroethene trans- 1,3-Dichloropropene trans-1,4-Dichloro-2-butene Surrogates 1,2-Dichloroethane-d4 (S) Dibromofluoromethane (S) 4-Bromofluorobenzene (S) Toluene-d8 (S) 8260D MSV SIM 1,4-Dioxane (p-Dioxane) Surrogates 1,2-Dichloroethane-d4 (S) Toluene-d8 (S) Date: 05/21 /2019 12:08 PM Analytical Method: EPA 8260D ND ug/L 1.0 0.58 1 05/16/19 22:09 67-66-3 ND ug/L 1.0 0.38 1 05/16/19 22:09 74-87-3 v2 ND ug/L 1.0 0.31 1 05/16/19 22:09 124-48-1 ND ug/L 1.0 0.62 1 05/16/19 22:09 74-95-3 ND ug/L 1.0 0.45 1 05/16/19 22:09 100-41-4 ND ug/L 10.0 3.1 1 05/16/19 22:09 74-88-4 ND ug/L 1.0 0.50 1 05/16/19 22:09 75-09-2 ND ug/L 1.0 0.50 1 05/16/19 22:09 100-42-5 ND ug/L 1.0 0.78 1 05/16/19 22:09 127-18-4 ND ug/L 1.0 0.31 1 05/16/19 22:09 108-88-3 ND ug/L 1.0 0.34 1 05/16/19 22:09 79-01-6 ND ug/L 1.0 0.51 1 05/16/19 22:09 75-69-4 ND ug/L 2.0 0.42 1 05/16/19 22:09 108-05-4 ND ug/L 1.0 0.60 1 05/16/19 22:09 75-01-4 ND ug/L 2.0 1.5 1 05/16/19 22:09 1330-20-7 1.6 ug/L 1.0 0.66 1 05/16/19 22:09 156-59-2 ND ug/L 1.0 0.22 1 05/16/19 22:09 10061-01-5 ND ug/L 1.0 0.92 1 05/16/19 22:09 179601-23-1 ND ug/L 1.0 0.54 1 05/16/19 22:09 95-47-6 ND ug/L 1.0 0.46 1 05/16/19 22:09 156-60-5 ND ug/L 1.0 0.30 1 05/16/19 22:09 10061-02-6 ND ug/L 5.0 1.6 1 05/16/19 22:09 110-57-6 97 %. 81-119 1 05/16/19 22:09 17060-07-0 105 %. 82-114 1 05/16/19 22:09 1868-53-7 87 %. 82-120 1 05/16/19 22:09 460-00-4 83 %. 82-109 1 05/16/19 22:09 2037-26-5 Analytical Method: EPA 8260D Mod. ND ug/L 2.0 1.2 1 05/16/1917:19 123-91-1 103 % 50-150 1 05/16/1917:19 17060-07-0 111 % 50-150 1 05/16/1917:19 2037-26-5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 8 of 30 aceAnalytical -pacelabsxom Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: BURKE CO. EAST BURKE Pace Project No.: 92428709 Sample: 1202-MW2 Lab ID: 92428709002 Collected: 05/06/19 10:40 Received: 05/09/19 09:31 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 6010 MET ICP Analytical Method: EPA 601 OD Preparation Method: EPA 3010A Antimony ND ug/L 5.0 3.9 1 05/17/19 11:00 05/20/19 09:40 7440-36-0 Arsenic 20.4 ug/L 10.0 5.0 1 05/17/19 11:00 05/20/19 09:40 7440-38-2 Barium 40.6 ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:40 7440-39-3 Beryllium ND ug/L 1.0 0.50 1 05/17/19 11:00 05/20/19 09:40 7440-41-7 Cadmium ND ug/L 1.0 0.50 1 05/17/19 11:00 05/20/19 09:40 7440-43-9 Chromium ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:40 7440-47-3 Cobalt 74.7 ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:40 7440-48-4 Copper 3.2J ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:40 7440-50-8 Lead ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:40 7439-92-1 Nickel 62.0 ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:40 7440-02-0 Selenium ND ug/L 10.0 5.0 1 05/17/19 11:00 05/20/19 09:40 7782-49-2 Silver ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:40 7440-22-4 Vanadium ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:40 7440-62-2 Zinc 8.01 ug/L 10.0 5.0 1 05/17/19 11:00 05/20/19 09:40 7440-66-6 6020 MET ICPMS Analytical Method: EPA 6020E Preparation Method: EPA 3010A Thallium 0.42 ug/L 0.10 0.060 1 05/17/19 15:02 05/21/19 00:04 7440-28-0 8260D MSV Water, Extend Analytical Method: EPA 8260D 1,1,1,2-Tetrachloroethane ND ug/L 1.0 0.32 1 05/16/19 22:35 630-20-6 1,1,1-Trichloroethane ND ug/L 1.0 0.38 1 05/16/19 22:35 71-55-6 1,1,2,2-Tetrachloroethane ND ug/L 1.0 0.53 1 05/16/19 22:35 79-34-5 1,1,2-Trichloroethane ND ug/L 1.0 0.59 1 05/16/19 22:35 79-00-5 1,1-Dichloroethane 0.46J ug/L 1.0 0.41 1 05/16/19 22:35 75-34-3 1,1-Dichloroethene ND ug/L 1.0 0.72 1 05/16/19 22:35 75-35-4 1,2,3-Trichloropropane ND ug/L 1.0 0.46 1 05/16/19 22:35 96-18-4 1,2-Dibromo-3-chloropropane ND ug/L 2.0 0.55 1 05/16/19 22:35 96-12-8 1,2-Dibromoethane (EDB) ND ug/L 2.0 0.28 1 05/16/19 22:35 106-93-4 1,2-Dichlorobenzene 0.88J ug/L 1.0 0.49 1 05/16/19 22:35 95-50-1 1,2-Dichloroethane ND ug/L 1.0 0.67 1 05/16/19 22:35 107-06-2 1,2-Dichloropropane ND ug/L 1.0 0.60 1 05/16/19 22:35 78-87-5 1,4-Dichlorobenzene 14.0 ug/L 1.0 0.58 1 05/16/19 22:35 106-46-7 2-Butanone (MEK) ND ug/L 5.0 3.2 1 05/16/19 22:35 78-93-3 2-Hexanone ND ug/L 5.0 0.89 1 05/16/19 22:35 591-78-6 4-Methyl-2-pentanone (MIBK) ND ug/L 5.0 0.86 1 05/16/19 22:35 108-10-1 Acetone ND ug/L 25.0 8.2 1 05/16/19 22:35 67-64-1 Acrylonitrile ND ug/L 50.0 2.5 1 05/16/19 22:35 107-13-1 Benzene 4.7 ug/L 1.0 0.20 1 05/16/19 22:35 71-43-2 Bromochloromethane ND ug/L 1.0 0.50 1 05/16/19 22:35 74-97-5 L1 Bromodichloromethane ND ug/L 1.0 0.36 1 05/16/19 22:35 75-27-4 Bromoform ND ug/L 1.0 0.55 1 05/16/19 22:35 75-25-2 Bromomethane ND ug/L 2.0 0.95 1 05/16/19 22:35 74-83-9 Carbon disulfide ND ug/L 10.0 0.79 1 05/16/19 22:35 75-15-0 Carbon tetrachloride ND ug/L 1.0 0.42 1 05/16/19 22:35 56-23-5 Chlorobenzene 35.5 ug/L 1.0 0.53 1 05/16/19 22:35 108-90-7 Chloroethane 1.7 ug/L 1.0 0.52 1 05/16/19 22:35 75-00-3 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 05/21 /2019 12:08 PM without the written consent of Pace Analytical Services, LLC. Page 9 of 30 aceAnalytical -pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: BURKE CO. EAST BURKE Pace Project No.: 92428709 Sample: 1202-MW2 Lab ID: 92428709002 Collected: 05/06/19 10:40 Received: 05/09/19 09:31 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 8260D MSV Water, Extend Chloroform Chloromethane Dibromochloromethane Dibromomethane Ethylbenzene lodomethane Methylene Chloride Styrene Tetrachloroethene Toluene Trichloroethene Trichlorofluoromethane Vinyl acetate Vinyl chloride Xylene (Total) cis-1,2-Dichloroethene cis-1,3-Dichloropropene m&p-Xylene o-Xylene trans-1,2-Dichloroethene trans- 1,3-Dichloropropene trans-1,4-Dichloro-2-butene Surrogates 1,2-Dichloroethane-d4 (S) Dibromofluoromethane (S) 4-Bromofluorobenzene (S) Toluene-d8 (S) 8260D MSV SIM 1,4-Dioxane (p-Dioxane) Surrogates 1,2-Dichloroethane-d4 (S) Toluene-d8 (S) Date: 05/21 /2019 12:08 PM Analytical Method: EPA 8260D ND ug/L 1.0 0.58 1 05/16/19 22:35 67-66-3 ND ug/L 1.0 0.38 1 05/16/19 22:35 74-87-3 v2 ND ug/L 1.0 0.31 1 05/16/19 22:35 124-48-1 ND ug/L 1.0 0.62 1 05/16/19 22:35 74-95-3 ND ug/L 1.0 0.45 1 05/16/19 22:35 100-41-4 ND ug/L 10.0 3.1 1 05/16/19 22:35 74-88-4 ND ug/L 1.0 0.50 1 05/16/19 22:35 75-09-2 ND ug/L 1.0 0.50 1 05/16/19 22:35 100-42-5 ND ug/L 1.0 0.78 1 05/16/19 22:35 127-18-4 ND ug/L 1.0 0.31 1 05/16/19 22:35 108-88-3 ND ug/L 1.0 0.34 1 05/16/19 22:35 79-01-6 ND ug/L 1.0 0.51 1 05/16/19 22:35 75-69-4 ND ug/L 2.0 0.42 1 05/16/19 22:35 108-05-4 ND ug/L 1.0 0.60 1 05/16/19 22:35 75-01-4 17.2 ug/L 2.0 1.5 1 05/16/19 22:35 1330-20-7 ND ug/L 1.0 0.66 1 05/16/19 22:35 156-59-2 ND ug/L 1.0 0.22 1 05/16/19 22:35 10061-01-5 17.2 ug/L 1.0 0.92 1 05/16/19 22:35 179601-23-1 0.61J ug/L 1.0 0.54 1 05/16/19 22:35 95-47-6 ND ug/L 1.0 0.46 1 05/16/19 22:35 156-60-5 ND ug/L 1.0 0.30 1 05/16/19 22:35 10061-02-6 ND ug/L 5.0 1.6 1 05/16/19 22:35 110-57-6 96 %. 81-119 1 05/16/19 22:35 17060-07-0 104 %. 82-114 1 05/16/19 22:35 1868-53-7 85 %. 82-120 1 05/16/19 22:35 460-00-4 82 %. 82-109 1 05/16/19 22:35 2037-26-5 Analytical Method: EPA 8260D Mod. 2.7 ug/L 2.0 1.2 1 05/16/1917:39 123-91-1 102 % 50-150 1 05/16/1917:39 17060-07-0 110 % 50-150 1 05/16/1917:39 2037-26-5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 10 of 30 aceAnalytical -pacelabsxom Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: BURKE CO. EAST BURKE Pace Project No.: 92428709 Sample: 1202-MW3 Lab ID: 92428709003 Collected: 05/06/19 12:09 Received: 05/09/19 09:31 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 6010 MET ICP Antimony Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead Nickel Selenium Silver Vanadium Zinc 1400111 �41 :4 9 [y :2 61.9 Thallium 8260D MSV Water, Extend 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,2,3-Trichloropropane 1,2-Dibromo-3-chloropropane 1,2-Dibromoethane (EDB) 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,4-Dichlorobenzene 2-Butanone (MEK) 2-Hexanone 4-Methyl-2-pentanone (MIBK) Acetone Acrylonitrile Benzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon disulfide Carbon tetrachloride Chlorobenzene Chloroethane Date: 05/21 /2019 12:08 PM Analytical Method: EPA 601 OD Preparation Method: EPA 3010A ND ug/L 5.0 3.9 1 05/17/19 11:00 05/20/19 09:43 7440-36-0 ND ug/L 10.0 5.0 1 05/17/19 11:00 05/20/19 09:43 7440-38-2 113 ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:43 7440-39-3 ND ug/L 1.0 0.50 1 05/17/19 11:00 05/20/19 09:43 7440-41-7 ND ug/L 1.0 0.50 1 05/17/19 11:00 05/20/19 09:43 7440-43-9 ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:43 7440-47-3 27.2 ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:43 7440-48-4 ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:43 7440-50-8 ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:43 7439-92-1 9.7 ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:43 7440-02-0 ND ug/L 10.0 5.0 1 05/17/19 11:00 05/20/19 09:43 7782-49-2 ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:43 7440-22-4 ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:43 7440-62-2 ND ug/L 10.0 5.0 1 05/17/19 11:00 05/20/19 09:43 7440-66-6 Analytical Method: EPA 6020E Preparation Method: EPA 3010A 0.91 ug/L 0.10 0.060 1 05/17/19 15:02 05/21/19 00:11 7440-28-0 Analytical Method: EPA 8260D ND ug/L 1.0 0.32 1 05/16/19 23:01 630-20-6 ND ug/L 1.0 0.38 1 05/16/19 23:01 71-55-6 ND ug/L 1.0 0.53 1 05/16/19 23:01 79-34-5 ND ug/L 1.0 0.59 1 05/16/19 23:01 79-00-5 5.8 ug/L 1.0 0.41 1 05/16/19 23:01 75-34-3 ND ug/L 1.0 0.72 1 05/16/19 23:01 75-35-4 ND ug/L 1.0 0.46 1 05/16/19 23:01 96-18-4 ND ug/L 2.0 0.55 1 05/16/19 23:01 96-12-8 ND ug/L 2.0 0.28 1 05/16/19 23:01 106-93-4 ND ug/L 1.0 0.49 1 05/16/19 23:01 95-50-1 ND ug/L 1.0 0.67 1 05/16/19 23:01 107-06-2 1.0 ug/L 1.0 0.60 1 05/16/19 23:01 78-87-5 4.9 ug/L 1.0 0.58 1 05/16/19 23:01 106-46-7 ND ug/L 5.0 3.2 1 05/16/19 23:01 78-93-3 ND ug/L 5.0 0.89 1 05/16/19 23:01 591-78-6 ND ug/L 5.0 0.86 1 05/16/19 23:01 108-10-1 ND ug/L 25.0 8.2 1 05/16/19 23:01 67-64-1 ND ug/L 50.0 2.5 1 05/16/19 23:01 107-13-1 1.8 ug/L 1.0 0.20 1 05/16/19 23:01 71-43-2 ND ug/L 1.0 0.50 1 05/16/19 23:01 74-97-5 ND ug/L 1.0 0.36 1 05/16/19 23:01 75-27-4 ND ug/L 1.0 0.55 1 05/16/19 23:01 75-25-2 ND ug/L 2.0 0.95 1 05/16/19 23:01 74-83-9 ND ug/L 10.0 0.79 1 05/16/19 23:01 75-15-0 ND ug/L 1.0 0.42 1 05/16/19 23:01 56-23-5 8.9 ug/L 1.0 0.53 1 05/16/19 23:01 108-90-7 ND ug/L 1.0 0.52 1 05/16/19 23:01 75-00-3 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. L1 Page 11 of 30 aceAnalytical -pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: BURKE CO. EAST BURKE Pace Project No.: 92428709 Sample: 1202-MW3 Lab ID: 92428709003 Collected: 05/06/19 12:09 Received: 05/09/19 09:31 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 8260D MSV Water, Extend Chloroform Chloromethane Dibromochloromethane Dibromomethane Ethylbenzene lodomethane Methylene Chloride Styrene Tetrachloroethene Toluene Trichloroethene Trichlorofluoromethane Vinyl acetate Vinyl chloride Xylene (Total) cis-1,2-Dichloroethene cis-1,3-Dichloropropene m&p-Xylene o-Xylene trans-1,2-Dichloroethene trans- 1,3-Dichloropropene trans-1,4-Dichloro-2-butene Surrogates 1,2-Dichloroethane-d4 (S) Dibromofluoromethane (S) 4-Bromofluorobenzene (S) Toluene-d8 (S) 8260D MSV SIM 1,4-Dioxane (p-Dioxane) Surrogates 1,2-Dichloroethane-d4 (S) Toluene-d8 (S) Date: 05/21 /2019 12:08 PM Analytical Method: EPA 8260D ND ug/L 1.0 0.58 1 05/16/19 23:01 67-66-3 ND ug/L 1.0 0.38 1 05/16/19 23:01 74-87-3 v2 ND ug/L 1.0 0.31 1 05/16/19 23:01 124-48-1 ND ug/L 1.0 0.62 1 05/16/19 23:01 74-95-3 ND ug/L 1.0 0.45 1 05/16/19 23:01 100-41-4 ND ug/L 10.0 3.1 1 05/16/19 23:01 74-88-4 ND ug/L 1.0 0.50 1 05/16/19 23:01 75-09-2 ND ug/L 1.0 0.50 1 05/16/19 23:01 100-42-5 11.3 ug/L 1.0 0.78 1 05/16/19 23:01 127-18-4 ND ug/L 1.0 0.31 1 05/16/19 23:01 108-88-3 6.0 ug/L 1.0 0.34 1 05/16/19 23:01 79-01-6 ND ug/L 1.0 0.51 1 05/16/19 23:01 75-69-4 ND ug/L 2.0 0.42 1 05/16/19 23:01 108-05-4 1.4 ug/L 1.0 0.60 1 05/16/19 23:01 75-01-4 ND ug/L 2.0 1.5 1 05/16/19 23:01 1330-20-7 18.0 ug/L 1.0 0.66 1 05/16/19 23:01 156-59-2 ND ug/L 1.0 0.22 1 05/16/19 23:01 10061-01-5 ND ug/L 1.0 0.92 1 05/16/19 23:01 179601-23-1 ND ug/L 1.0 0.54 1 05/16/19 23:01 95-47-6 ND ug/L 1.0 0.46 1 05/16/19 23:01 156-60-5 ND ug/L 1.0 0.30 1 05/16/19 23:01 10061-02-6 ND ug/L 5.0 1.6 1 05/16/19 23:01 110-57-6 97 %. 81-119 1 05/16/19 23:01 17060-07-0 105 %. 82-114 1 05/16/19 23:01 1868-53-7 87 %. 82-120 1 05/16/19 23:01 460-00-4 83 %. 82-109 1 05/16/19 23:01 2037-26-5 Analytical Method: EPA 8260D Mod. 33.1 ug/L 2.0 1.2 1 05/16/1917:59 123-91-1 104 % 50-150 1 05/16/1917:59 17060-07-0 111 % 50-150 1 05/16/1917:59 2037-26-5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 12 of 30 aceAnalytical -pacelabsxom Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: BURKE CO. EAST BURKE Pace Project No.: 92428709 Sample: 1202-AMW1 Lab ID: 92428709004 Collected: 05/06/19 12:45 Received: 05/09/19 09:31 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 6010 MET ICP Antimony Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead Nickel Selenium Silver Vanadium Zinc 1400111 �41 :4 9 [y :2 61.9 Thallium 8260D MSV Water, Extend 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,2,3-Trichloropropane 1,2-Dibromo-3-chloropropane 1,2-Dibromoethane (EDB) 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,4-Dichlorobenzene 2-Butanone (MEK) 2-Hexanone 4-Methyl-2-pentanone (MIBK) Acetone Acrylonitrile Benzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon disulfide Carbon tetrachloride Chlorobenzene Chloroethane Date: 05/21 /2019 12:08 PM Analytical Method: EPA 601 OD Preparation Method: EPA 3010A ND ug/L 5.0 3.9 1 05/17/19 11:00 05/20/19 09:46 7440-36-0 ND ug/L 10.0 5.0 1 05/17/19 11:00 05/20/19 09:46 7440-38-2 50.8 ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:46 7440-39-3 ND ug/L 1.0 0.50 1 05/17/19 11:00 05/20/19 09:46 7440-41-7 ND ug/L 1.0 0.50 1 05/17/19 11:00 05/20/19 09:46 7440-43-9 ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:46 7440-47-3 ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:46 7440-48-4 ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:46 7440-50-8 ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:46 7439-92-1 ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:46 7440-02-0 ND ug/L 10.0 5.0 1 05/17/19 11:00 05/20/19 09:46 7782-49-2 ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:46 7440-22-4 ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:46 7440-62-2 ND ug/L 10.0 5.0 1 05/17/19 11:00 05/20/19 09:46 7440-66-6 Analytical Method: EPA 6020E Preparation Method: EPA 3010A 0.17 ug/L 0.10 0.060 1 05/17/19 15:02 05/21/19 00:26 7440-28-0 Analytical Method: EPA 8260D ND ug/L 1.0 0.32 1 05/16/19 23:27 630-20-6 ND ug/L 1.0 0.38 1 05/16/19 23:27 71-55-6 ND ug/L 1.0 0.53 1 05/16/19 23:27 79-34-5 ND ug/L 1.0 0.59 1 05/16/19 23:27 79-00-5 ND ug/L 1.0 0.41 1 05/16/19 23:27 75-34-3 ND ug/L 1.0 0.72 1 05/16/19 23:27 75-35-4 ND ug/L 1.0 0.46 1 05/16/19 23:27 96-18-4 ND ug/L 2.0 0.55 1 05/16/19 23:27 96-12-8 ND ug/L 2.0 0.28 1 05/16/19 23:27 106-93-4 ND ug/L 1.0 0.49 1 05/16/19 23:27 95-50-1 ND ug/L 1.0 0.67 1 05/16/19 23:27 107-06-2 ND ug/L 1.0 0.60 1 05/16/19 23:27 78-87-5 ND ug/L 1.0 0.58 1 05/16/19 23:27 106-46-7 ND ug/L 5.0 3.2 1 05/16/19 23:27 78-93-3 ND ug/L 5.0 0.89 1 05/16/19 23:27 591-78-6 ND ug/L 5.0 0.86 1 05/16/19 23:27 108-10-1 ND ug/L 25.0 8.2 1 05/16/19 23:27 67-64-1 ND ug/L 50.0 2.5 1 05/16/19 23:27 107-13-1 ND ug/L 1.0 0.20 1 05/16/19 23:27 71-43-2 ND ug/L 1.0 0.50 1 05/16/19 23:27 74-97-5 ND ug/L 1.0 0.36 1 05/16/19 23:27 75-27-4 ND ug/L 1.0 0.55 1 05/16/19 23:27 75-25-2 ND ug/L 2.0 0.95 1 05/16/19 23:27 74-83-9 ND ug/L 10.0 0.79 1 05/16/19 23:27 75-15-0 ND ug/L 1.0 0.42 1 05/16/19 23:27 56-23-5 ND ug/L 1.0 0.53 1 05/16/19 23:27 108-90-7 ND ug/L 1.0 0.52 1 05/16/19 23:27 75-00-3 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. L1 Page 13 of 30 aceAnalytical -pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: BURKE CO. EAST BURKE Pace Project No.: 92428709 Sample: 1202-AMW1 Lab ID: 92428709004 Collected: 05/06/19 12:45 Received: 05/09/19 09:31 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 8260D MSV Water, Extend Chloroform Chloromethane Dibromochloromethane Dibromomethane Ethylbenzene lodomethane Methylene Chloride Styrene Tetrachloroethene Toluene Trichloroethene Trichlorofluoromethane Vinyl acetate Vinyl chloride Xylene (Total) cis-1,2-Dichloroethene cis-1,3-Dichloropropene m&p-Xylene o-Xylene trans-1,2-Dichloroethene trans- 1,3-Dichloropropene trans-1,4-Dichloro-2-butene Surrogates 1,2-Dichloroethane-d4 (S) Dibromofluoromethane (S) 4-Bromofluorobenzene (S) Toluene-d8 (S) 8260D MSV SIM 1,4-Dioxane (p-Dioxane) Surrogates 1,2-Dichloroethane-d4 (S) Toluene-d8 (S) Date: 05/21 /2019 12:08 PM Analytical Method: EPA 8260D ND ug/L 1.0 0.58 1 05/16/19 23:27 67-66-3 ND ug/L 1.0 0.38 1 05/16/19 23:27 74-87-3 v2 ND ug/L 1.0 0.31 1 05/16/19 23:27 124-48-1 ND ug/L 1.0 0.62 1 05/16/19 23:27 74-95-3 ND ug/L 1.0 0.45 1 05/16/19 23:27 100-41-4 ND ug/L 10.0 3.1 1 05/16/19 23:27 74-88-4 ND ug/L 1.0 0.50 1 05/16/19 23:27 75-09-2 ND ug/L 1.0 0.50 1 05/16/19 23:27 100-42-5 ND ug/L 1.0 0.78 1 05/16/19 23:27 127-18-4 ND ug/L 1.0 0.31 1 05/16/19 23:27 108-88-3 ND ug/L 1.0 0.34 1 05/16/19 23:27 79-01-6 ND ug/L 1.0 0.51 1 05/16/19 23:27 75-69-4 ND ug/L 2.0 0.42 1 05/16/19 23:27 108-05-4 ND ug/L 1.0 0.60 1 05/16/19 23:27 75-01-4 ND ug/L 2.0 1.5 1 05/16/19 23:27 1330-20-7 1.4 ug/L 1.0 0.66 1 05/16/19 23:27 156-59-2 ND ug/L 1.0 0.22 1 05/16/19 23:27 10061-01-5 ND ug/L 1.0 0.92 1 05/16/19 23:27 179601-23-1 ND ug/L 1.0 0.54 1 05/16/19 23:27 95-47-6 ND ug/L 1.0 0.46 1 05/16/19 23:27 156-60-5 ND ug/L 1.0 0.30 1 05/16/19 23:27 10061-02-6 ND ug/L 5.0 1.6 1 05/16/19 23:27 110-57-6 98 %. 81-119 1 05/16/19 23:27 17060-07-0 105 %. 82-114 1 05/16/19 23:27 1868-53-7 86 %. 82-120 1 05/16/19 23:27 460-00-4 83 %. 82-109 1 05/16/19 23:27 2037-26-5 Analytical Method: EPA 8260D Mod. 1.91 ug/L 2.0 1.2 1 05/16/1918:18 123-91-1 100 % 50-150 1 05/16/1918:18 17060-07-0 113 % 50-150 1 05/16/1918:18 2037-26-5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 14 of 30 aceAnalytical -pacelabsxom Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: BURKE CO. EAST BURKE Pace Project No.: 92428709 Sample: 1202-SW1 Lab ID: 92428709005 Collected: 05/06/19 11:35 Received: 05/09/19 09:31 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 6010 MET ICP Antimony Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead Nickel Selenium Silver Hardness, Total(SM 2340B) Vanadium Zinc 6020 MET ICPMS Thallium 8260D MSV Water, Extend 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,2,3-Trichloropropane 1,2-Dibromo-3-chloropropane 1,2-Dibromoethane (EDB) 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,4-Dichlorobenzene 2-Butanone (MEK) 2-Hexanone 4-Methyl-2-pentanone (MIBK) Acetone Acrylonitrile Benzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon disulfide Carbon tetrachloride Chlorobenzene Date: 05/21 /2019 12:08 PM Analytical Method: EPA 601 OD Preparation Method: EPA 3010A ND ug/L 5.0 3.9 1 05/17/19 11:00 05/20/19 09:49 7440-36-0 ND ug/L 10.0 5.0 1 05/17/19 11:00 05/20/19 09:49 7440-38-2 41.4 ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:49 7440-39-3 ND ug/L 1.0 0.50 1 05/17/19 11:00 05/20/19 09:49 7440-41-7 ND ug/L 1.0 0.50 1 05/17/19 11:00 05/20/19 09:49 7440-43-9 ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:49 7440-47-3 3.5J ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:49 7440-48-4 ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:49 7440-50-8 ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:49 7439-92-1 2.9J ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:49 7440-02-0 ND ug/L 10.0 5.0 1 05/17/19 11:00 05/20/19 09:49 7782-49-2 ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:49 7440-22-4 19900 ug/L 662 662 1 05/17/19 11:00 05/20/19 09:49 ND ug/L 5.0 2.5 1 05/17/19 11:00 05/20/19 09:49 7440-62-2 ND ug/L 10.0 5.0 1 05/17/19 11:00 05/20/19 09:49 7440-66-6 Analytical Method: EPA 6020E Preparation Method: EPA 3010A 0.072J ug/L 0.10 0.060 1 05/17/19 15:02 05/21/19 00:29 7440-28-0 Analytical Method: EPA 8260D ND ug/L 1.0 0.32 1 05/16/19 23:53 630-20-6 ND ug/L 1.0 0.38 1 05/16/19 23:53 71-55-6 ND ug/L 1.0 0.53 1 05/16/19 23:53 79-34-5 ND ug/L 1.0 0.59 1 05/16/19 23:53 79-00-5 ND ug/L 1.0 0.41 1 05/16/19 23:53 75-34-3 ND ug/L 1.0 0.72 1 05/16/19 23:53 75-35-4 ND ug/L 1.0 0.46 1 05/16/19 23:53 96-18-4 ND ug/L 2.0 0.55 1 05/16/19 23:53 96-12-8 ND ug/L 2.0 0.28 1 05/16/19 23:53 106-93-4 ND ug/L 1.0 0.49 1 05/16/19 23:53 95-50-1 ND ug/L 1.0 0.67 1 05/16/19 23:53 107-06-2 ND ug/L 1.0 0.60 1 05/16/19 23:53 78-87-5 ND ug/L 1.0 0.58 1 05/16/19 23:53 106-46-7 ND ug/L 5.0 3.2 1 05/16/19 23:53 78-93-3 ND ug/L 5.0 0.89 1 05/16/19 23:53 591-78-6 ND ug/L 5.0 0.86 1 05/16/19 23:53 108-10-1 ND ug/L 25.0 8.2 1 05/16/19 23:53 67-64-1 ND ug/L 50.0 2.5 1 05/16/19 23:53 107-13-1 ND ug/L 1.0 0.20 1 05/16/19 23:53 71-43-2 ND ug/L 1.0 0.50 1 05/16/19 23:53 74-97-5 ND ug/L 1.0 0.36 1 05/16/19 23:53 75-27-4 ND ug/L 1.0 0.55 1 05/16/19 23:53 75-25-2 ND ug/L 2.0 0.95 1 05/16/19 23:53 74-83-9 ND ug/L 10.0 0.79 1 05/16/19 23:53 75-15-0 ND ug/L 1.0 0.42 1 05/16/19 23:53 56-23-5 ND ug/L 1.0 0.53 1 05/16/19 23:53 108-90-7 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. L1 Page 15 of 30 aceAnalytical -pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: BURKE CO. EAST BURKE Pace Project No.: 92428709 Sample: 1202-SW1 Lab ID: 92428709005 Collected: 05/06/19 11:35 Received: 05/09/19 09:31 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 8260D MSV Water, Extend Chloroethane Chloroform Chloromethane Dibromochloromethane Dibromomethane Ethylbenzene lodomethane Methylene Chloride Styrene Tetrachloroethene Toluene Trichloroethene Trichlorofluoromethane Vinyl acetate Vinyl chloride Xylene (Total) cis-1,2-Dichloroethene cis-1,3-Dichloropropene m&p-Xylene o-Xylene trans-1,2-Dichloroethene trans- 1,3-Dichloropropene trans-1,4-Dichloro-2-butene Surrogates 1,2-Dichloroethane-d4 (S) Dibromofluoromethane (S) 4-Bromofluorobenzene (S) Toluene-d8 (S) 8260D MSV SIM 1,4-Dioxane (p-Dioxane) Surrogates 1,2-Dichloroethane-d4 (S) Toluene-d8 (S) Date: 05/21 /2019 12:08 PM Analytical Method: EPA 8260D ND ug/L 1.0 0.52 1 05/16/19 23:53 75-00-3 ND ug/L 1.0 0.58 1 05/16/19 23:53 67-66-3 ND ug/L 1.0 0.38 1 05/16/19 23:53 74-87-3 v2 ND ug/L 1.0 0.31 1 05/16/19 23:53 124-48-1 ND ug/L 1.0 0.62 1 05/16/19 23:53 74-95-3 ND ug/L 1.0 0.45 1 05/16/19 23:53 100-41-4 ND ug/L 10.0 3.1 1 05/16/19 23:53 74-88-4 ND ug/L 1.0 0.50 1 05/16/19 23:53 75-09-2 ND ug/L 1.0 0.50 1 05/16/19 23:53 100-42-5 ND ug/L 1.0 0.78 1 05/16/19 23:53 127-18-4 ND ug/L 1.0 0.31 1 05/16/19 23:53 108-88-3 ND ug/L 1.0 0.34 1 05/16/19 23:53 79-01-6 ND ug/L 1.0 0.51 1 05/16/19 23:53 75-69-4 ND ug/L 2.0 0.42 1 05/16/19 23:53 108-05-4 ND ug/L 1.0 0.60 1 05/16/19 23:53 75-01-4 ND ug/L 2.0 1.5 1 05/16/19 23:53 1330-20-7 ND ug/L 1.0 0.66 1 05/16/19 23:53 156-59-2 ND ug/L 1.0 0.22 1 05/16/19 23:53 10061-01-5 ND ug/L 1.0 0.92 1 05/16/19 23:53 179601-23-1 ND ug/L 1.0 0.54 1 05/16/19 23:53 95-47-6 ND ug/L 1.0 0.46 1 05/16/19 23:53 156-60-5 ND ug/L 1.0 0.30 1 05/16/19 23:53 10061-02-6 ND ug/L 5.0 1.6 1 05/16/19 23:53 110-57-6 99 %. 81-119 1 05/16/19 23:53 17060-07-0 101 %. 82-114 1 05/16/19 23:53 1868-53-7 87 %. 82-120 1 05/16/19 23:53 460-00-4 83 %. 82-109 1 05/16/19 23:53 2037-26-5 Analytical Method: EPA 8260D Mod. 7.4 ug/L 2.0 1.2 1 05/16/1918:38 123-91-1 102 % 50-150 1 05/16/1918:38 17060-07-0 109 % 50-150 1 05/16/1918:38 2037-26-5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 16 of 30 aceAnalytical -pacelabsxom Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: BURKE CO. EAST BURKE Pace Project No.: 92428709 Sample: 1202-SW2 Lab ID: 92428709006 Collected: 05/06/19 12:40 Received: 05/09/19 09:31 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 6010 MET ICP Antimony Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead Nickel Selenium Silver Hardness, Total(SM 2340B) Vanadium Zinc 6020 MET ICPMS Thallium 8260D MSV Water, Extend 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1,2,2-Tetrachloroethane 1,1,2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,2,3-Trichloropropane 1,2-Dibromo-3-chloropropane 1,2-Dibromoethane (EDB) 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,4-Dichlorobenzene 2-Butanone (MEK) 2-Hexanone 4-Methyl-2-pentanone (MIBK) Acetone Acrylonitrile Benzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon disulfide Carbon tetrachloride Chlorobenzene Date: 05/21 /2019 12:08 PM Analytical Method: EPA 601 OD Preparation Method: EPA 3010A ND ug/L 5.0 3.9 1 05/17/1911:00 05/20/1910:05 7440-36-0 ND ug/L 10.0 5.0 1 05/17/1911:00 05/20/1910:05 7440-38-2 47.9 ug/L 5.0 2.5 1 05/17/1911:00 05/20/1910:05 7440-39-3 0.86J ug/L 1.0 0.50 1 05/17/1911:00 05/20/1910:05 7440-41-7 1.2 ug/L 1.0 0.50 1 05/17/1911:00 05/20/1910:05 7440-43-9 ND ug/L 5.0 2.5 1 05/17/1911:00 05/20/1910:05 7440-47-3 7.8 ug/L 5.0 2.5 1 05/17/1911:00 05/20/1910:05 7440-48-4 2.8J ug/L 5.0 2.5 1 05/17/1911:00 05/20/1910:05 7440-50-8 2.7J ug/L 5.0 2.5 1 05/17/1911:00 05/20/1910:05 7439-92-1 4.7J ug/L 5.0 2.5 1 05/17/1911:00 05/20/1910:05 7440-02-0 ND ug/L 10.0 5.0 1 05/17/1911:00 05/20/1910:05 7782-49-2 ND ug/L 5.0 2.5 1 05/17/1911:00 05/20/1910:05 7440-22-4 28800 ug/L 662 662 1 05/17/1911:00 05/20/1910:05 ND ug/L 5.0 2.5 1 05/17/1911:00 05/20/1910:05 7440-62-2 ND ug/L 10.0 5.0 1 05/17/1911:00 05/20/1910:05 7440-66-6 Analytical Method: EPA 6020E Preparation Method: EPA 3010A 0.10 ug/L 0.10 0.060 1 05/17/19 15:02 05/21/19 00:33 7440-28-0 Analytical Method: EPA 8260D ND ug/L 1.0 0.32 1 05/17/19 00:19 630-20-6 ND ug/L 1.0 0.38 1 05/17/19 00:19 71-55-6 ND ug/L 1.0 0.53 1 05/17/19 00:19 79-34-5 ND ug/L 1.0 0.59 1 05/17/19 00:19 79-00-5 ND ug/L 1.0 0.41 1 05/17/19 00:19 75-34-3 ND ug/L 1.0 0.72 1 05/17/19 00:19 75-35-4 ND ug/L 1.0 0.46 1 05/17/19 00:19 96-18-4 ND ug/L 2.0 0.55 1 05/17/19 00:19 96-12-8 ND ug/L 2.0 0.28 1 05/17/19 00:19 106-93-4 ND ug/L 1.0 0.49 1 05/17/19 00:19 95-50-1 ND ug/L 1.0 0.67 1 05/17/19 00:19 107-06-2 ND ug/L 1.0 0.60 1 05/17/19 00:19 78-87-5 ND ug/L 1.0 0.58 1 05/17/19 00:19 106-46-7 ND ug/L 5.0 3.2 1 05/17/19 00:19 78-93-3 ND ug/L 5.0 0.89 1 05/17/19 00:19 591-78-6 ND ug/L 5.0 0.86 1 05/17/19 00:19 108-10-1 ND ug/L 25.0 8.2 1 05/17/19 00:19 67-64-1 ND ug/L 50.0 2.5 1 05/17/19 00:19 107-13-1 ND ug/L 1.0 0.20 1 05/17/19 00:19 71-43-2 ND ug/L 1.0 0.50 1 05/17/19 00:19 74-97-5 ND ug/L 1.0 0.36 1 05/17/19 00:19 75-27-4 ND ug/L 1.0 0.55 1 05/17/19 00:19 75-25-2 ND ug/L 2.0 0.95 1 05/17/19 00:19 74-83-9 ND ug/L 10.0 0.79 1 05/17/19 00:19 75-15-0 ND ug/L 1.0 0.42 1 05/17/19 00:19 56-23-5 ND ug/L 1.0 0.53 1 05/17/19 00:19 108-90-7 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. B L1 Page 17 of 30 aceAnalytical -pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: BURKE CO. EAST BURKE Pace Project No.: 92428709 Sample: 1202-SW2 Lab ID: 92428709006 Collected: 05/06/19 12:40 Received: 05/09/19 09:31 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 8260D MSV Water, Extend Chloroethane Chloroform Chloromethane Dibromochloromethane Dibromomethane Ethylbenzene lodomethane Methylene Chloride Styrene Tetrachloroethene Toluene Trichloroethene Trichlorofluoromethane Vinyl acetate Vinyl chloride Xylene (Total) cis-1,2-Dichloroethene cis-1,3-Dichloropropene m&p-Xylene o-Xylene trans-1,2-Dichloroethene trans- 1,3-Dichloropropene trans-1,4-Dichloro-2-butene Surrogates 1,2-Dichloroethane-d4 (S) Dibromofluoromethane (S) 4-Bromofluorobenzene (S) Toluene-d8 (S) 8260D MSV SIM 1,4-Dioxane (p-Dioxane) Surrogates 1,2-Dichloroethane-d4 (S) Toluene-d8 (S) Date: 05/21 /2019 12:08 PM Analytical Method: EPA 8260D ND ug/L 1.0 0.52 1 05/17/19 00:19 75-00-3 0.72J ug/L 1.0 0.58 1 05/17/19 00:19 67-66-3 ND ug/L 1.0 0.38 1 05/17/19 00:19 74-87-3 v2 ND ug/L 1.0 0.31 1 05/17/19 00:19 124-48-1 ND ug/L 1.0 0.62 1 05/17/19 00:19 74-95-3 ND ug/L 1.0 0.45 1 05/17/19 00:19 100-41-4 ND ug/L 10.0 3.1 1 05/17/19 00:19 74-88-4 ND ug/L 1.0 0.50 1 05/17/19 00:19 75-09-2 ND ug/L 1.0 0.50 1 05/17/19 00:19 100-42-5 ND ug/L 1.0 0.78 1 05/17/19 00:19 127-18-4 ND ug/L 1.0 0.31 1 05/17/19 00:19 108-88-3 ND ug/L 1.0 0.34 1 05/17/19 00:19 79-01-6 ND ug/L 1.0 0.51 1 05/17/19 00:19 75-69-4 ND ug/L 2.0 0.42 1 05/17/19 00:19 108-05-4 ND ug/L 1.0 0.60 1 05/17/19 00:19 75-01-4 ND ug/L 2.0 1.5 1 05/17/19 00:19 1330-20-7 ND ug/L 1.0 0.66 1 05/17/19 00:19 156-59-2 ND ug/L 1.0 0.22 1 05/17/19 00:19 10061-01-5 ND ug/L 1.0 0.92 1 05/17/19 00:19 179601-23-1 ND ug/L 1.0 0.54 1 05/17/19 00:19 95-47-6 ND ug/L 1.0 0.46 1 05/17/19 00:19 156-60-5 ND ug/L 1.0 0.30 1 05/17/19 00:19 10061-02-6 ND ug/L 5.0 1.6 1 05/17/19 00:19 110-57-6 99 %. 81-119 1 05/17/19 00:19 17060-07-0 101 %. 82-114 1 05/17/19 00:19 1868-53-7 87 %. 82-120 1 05/17/19 00:19 460-00-4 83 %. 82-109 1 05/17/19 00:19 2037-26-5 Analytical Method: EPA 8260D Mod. 9.2 ug/L 2.0 1.2 1 05/16/1918:58 123-91-1 100 % 50-150 1 05/16/1918:58 17060-07-0 110 % 50-150 1 05/16/1918:58 2037-26-5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 18 of 30 aceAnalytical —pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: BURKE CO. EAST BURKE Pace Project No.: 92428709 QC Batch: 475853 Analysis Method: EPA 6010D QC Batch Method: EPA 3010A Analysis Description: 6010 MET Associated Lab Samples: 92428709001, 92428709002, 92428709003, 92428709004, 92428709005, 92428709006 METHOD BLANK: 2578601 Matrix: Water Associated Lab Samples: 92428709001, 92428709002, 92428709003, 92428709004, 92428709005, 92428709006 Blank Reporting Parameter Units Result Limit MDL Analyzed Qualifiers Antimony ug/L ND 5.0 3.9 05/20/19 09:11 Arsenic ug/L ND 10.0 5.0 05/20/19 09:11 Barium ug/L ND 5.0 2.5 05/20/19 09:11 Beryllium ug/L ND 1.0 0.50 05/20/19 09:11 Cadmium ug/L 0.51 J 1.0 0.50 05/20/19 09:11 Chromium ug/L ND 5.0 2.5 05/20/19 09:11 Cobalt ug/L ND 5.0 2.5 05/20/19 09:11 Copper ug/L ND 5.0 2.5 05/20/19 09:11 Hardness, Total(SM 2340B) ug/L ND 662 662 05/20/19 09:11 Lead ug/L ND 5.0 2.5 05/20/19 09:11 Nickel ug/L ND 5.0 2.5 05/20/19 09:11 Selenium ug/L ND 10.0 5.0 05/20/19 09:11 Silver ug/L ND 5.0 2.5 05/20/19 09:11 Vanadium ug/L ND 5.0 2.5 05/20/19 09:11 Zinc ug/L ND 10.0 5.0 05/20/19 09:11 LABORATORY CONTROL SAMPLE: 2578602 Spike LCS LCS % Rec Parameter Units Conc. Result % Rec Limits Qualifiers Antimony ug/L 500 482 96 80-120 Arsenic ug/L 500 462 92 80-120 Barium ug/L 500 432 86 80-120 Beryllium ug/L 500 428 86 80-120 Cadmium ug/L 500 465 93 80-120 Chromium ug/L 500 449 90 80-120 Cobalt ug/L 500 471 94 80-120 Copper ug/L 500 463 93 80-120 Hardness, Total(SM 2340B) ug/L 33100 29100 88 80-120 Lead ug/L 500 469 94 80-120 Nickel ug/L 500 457 91 80-120 Selenium ug/L 500 477 95 80-120 Silver ug/L 250 239 96 80-120 Vanadium ug/L 500 460 92 80-120 Zinc ug/L 500 487 97 80-120 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 05/21 /2019 12:08 PM without the written consent of Pace Analytical Services, LLC. Page 19 of 30 aceAnalytical —pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: BURKE CO. Pace Project No.: 92428709 EAST BURKE MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2578603 2578604 MS MSD 92428709001 Spike Spike MS MSD MS MSD % Rec Max Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual Antimony ug/L ND 500 500 487 530 97 106 75-125 9 20 Arsenic ug/L 5.OJ 500 500 478 531 95 105 75-125 10 20 Barium ug/L 56.3 500 500 479 528 85 94 75-125 10 20 Beryllium ug/L ND 500 500 425 465 85 93 75-125 9 20 Cadmium ug/L ND 500 500 473 516 94 103 75-125 9 20 Chromium ug/L ND 500 500 447 492 89 98 75-125 10 20 Cobalt ug/L 10.6 500 500 485 533 95 105 75-125 10 20 Copper ug/L ND 500 500 457 506 91 101 75-125 10 20 Hardness, Total(SM 2340B) ug/L 27200 33100 33100 53800 59400 80 97 75-125 10 Lead ug/L ND 500 500 472 514 94 103 75-125 9 20 Nickel ug/L 5.5 500 500 463 509 92 101 75-125 9 20 Selenium ug/L ND 500 500 514 556 103 111 75-125 8 20 Silver ug/L ND 250 250 240 259 96 103 75-125 7 20 Vanadium ug/L ND 500 500 462 507 92 101 75-125 9 20 Zinc ug/L ND 500 500 505 555 100 111 75-125 10 20 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 05/21 /2019 12:08 PM without the written consent of Pace Analytical Services, LLC. Page 20 of 30 aceAnalytical —pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: BURKE CO. EAST BURKE Pace Project No.: 92428709 QC Batch: 476009 Analysis Method: EPA 6020B QC Batch Method: EPA 3010A Analysis Description: 6020 MET Associated Lab Samples: 92428709001, 92428709002, 92428709003, 92428709004, 92428709005, 92428709006 METHOD BLANK: 2579164 Matrix: Water Associated Lab Samples: 92428709001, 92428709002, 92428709003, 92428709004, 92428709005, 92428709006 Blank Reporting Parameter Units Result Limit MDL Analyzed Qualifiers Thallium ug/L ND 0.10 0.060 05/20/19 22:36 LABORATORY CONTROL SAMPLE: 2579165 Spike LCS LCS % Rec Parameter Units Conc. Result % Rec Limits Qualifiers Thallium ug/L 10 10 100 80-120 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2579166 2579167 MS MSD 92427335003 Spike Spike MS MSD MS MSD % Rec Max Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual Thallium ug/L ND 10 10 10.3 10 103 100 75-125 3 20 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 05/21 /2019 12:08 PM without the written consent of Pace Analytical Services, LLC. Page 21 of 30 aceAnalytical -pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: BURKE CO. EAST BURKE Pace Project No.: 92428709 QC Batch: 28498 Analysis Method: EPA 8260D QC Batch Method: EPA 8260D Analysis Description: 8260D MSV Water, Extend Associated Lab Samples: 92428709001, 92428709002, 92428709003, 92428709004, 92428709005, 92428709006 METHOD BLANK: 128350 Matrix: Water Associated Lab Samples: 92428709001, 92428709002, 92428709003, 92428709004, 92428709005, 92428709006 Blank Reporting Parameter Units Result Limit MDL Analyzed 1,1,1,2-Tetrachloroethane ug/L ND 1.0 0.32 05/16/19 18:41 1,1,1-Trichloroethane ug/L ND 1.0 0.38 05/16/19 18:41 1,1,2,2-Tetrachloroethane ug/L ND 1.0 0.53 05/16/19 18:41 1,1,2-Trichloroethane ug/L ND 1.0 0.59 05/16/19 18:41 1,1-Dichloroethane ug/L ND 1.0 0.41 05/16/19 18:41 1,1-Dichloroethene ug/L ND 1.0 0.72 05/16/19 18:41 1,2,3-Trichloropropane ug/L ND 1.0 0.46 05/16/19 18:41 1,2-Dibromo-3-chloropropane ug/L ND 2.0 0.55 05/16/19 18:41 1,2-Dibromoethane (EDB) ug/L ND 2.0 0.28 05/16/19 18:41 1,2-Dichlorobenzene ug/L ND 1.0 0.49 05/16/19 18:41 1,2-Dichloroethane ug/L ND 1.0 0.67 05/16/19 18:41 1,2-Dichloropropane ug/L ND 1.0 0.60 05/16/19 18:41 1,4-Dichlorobenzene ug/L ND 1.0 0.58 05/16/19 18:41 2-Butanone (MEK) ug/L ND 5.0 3.2 05/16/19 18:41 2-Hexanone ug/L ND 5.0 0.89 05/16/19 18:41 4-Methyl-2-pentanone (MIBK) ug/L ND 5.0 0.86 05/16/19 18:41 Acetone ug/L ND 25.0 8.2 05/16/19 18:41 Acrylonitrile ug/L ND 50.0 2.5 05/16/19 18:41 Benzene ug/L ND 1.0 0.20 05/16/19 18:41 Bromochloromethane ug/L ND 1.0 0.50 05/16/19 18:41 Bromodichloromethane ug/L ND 1.0 0.36 05/16/19 18:41 Bromoform ug/L ND 1.0 0.55 05/16/19 18:41 Bromomethane ug/L ND 2.0 0.95 05/16/19 18:41 Carbon disulfide ug/L ND 10.0 0.79 05/16/19 18:41 Carbon tetrachloride ug/L ND 1.0 0.42 05/16/19 18:41 Chlorobenzene ug/L ND 1.0 0.53 05/16/19 18:41 Chloroethane ug/L ND 1.0 0.52 05/16/19 18:41 Chloroform ug/L ND 1.0 0.58 05/16/19 18:41 Chloromethane ug/L ND 1.0 0.38 05/16/19 18:41 cis-1,2-Dichloroethene ug/L ND 1.0 0.66 05/16/19 18:41 cis-1,3-Dichloropropene ug/L ND 1.0 0.22 05/16/19 18:41 Dibromochloromethane ug/L ND 1.0 0.31 05/16/19 18:41 Dibromomethane ug/L ND 1.0 0.62 05/16/19 18:41 Ethylbenzene ug/L ND 1.0 0.45 05/16/19 18:41 lodomethane ug/L ND 10.0 3.1 05/16/19 18:41 m&p-Xylene ug/L ND 1.0 0.92 05/16/19 18:41 Methylene Chloride ug/L ND 1.0 0.50 05/16/19 18:41 o-Xylene ug/L ND 1.0 0.54 05/16/19 18:41 Styrene ug/L ND 1.0 0.50 05/16/19 18:41 Tetrachloroethene ug/L ND 1.0 0.78 05/16/19 18:41 Toluene ug/L ND 1.0 0.31 05/16/19 18:41 v2 Qualifiers Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 05/21 /2019 12:08 PM without the written consent of Pace Analytical Services, LLC. Page 22 of 30 aceAnalytical -pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: BURKE CO. EAST BURKE Pace Project No.: 92428709 METHOD BLANK: 128350 Associated Lab Samples: Parameter Matrix: Water 92428709001, 92428709002, 92428709003, 92428709004, 92428709005, 92428709006 Blank Reporting Units Result Limit MDL Analyzed Qualifiers trans-1,2-Dichloroethene ug/L ND 1.0 0.46 05/16/19 18:41 trans- 1,3-Dichloropropene ug/L ND 1.0 0.30 05/16/19 18:41 trans-1,4-Dichloro-2-butene ug/L ND 5.0 1.6 05/16/19 18:41 Trichloroethene ug/L ND 1.0 0.34 05/16/19 18:41 Trichlorofluoromethane ug/L ND 1.0 0.51 05/16/19 18:41 Vinyl acetate ug/L ND 2.0 0.42 05/16/19 18:41 Vinyl chloride ug/L ND 1.0 0.60 05/16/19 18:41 Xylene (Total) ug/L ND 2.0 1.5 05/16/19 18:41 1,2-Dichloroethane-d4 (S) %. 96 81-119 05/16/19 18:41 4-Bromofluorobenzene (S) %. 88 82-120 05/16/19 18:41 Dibromofluoromethane (S) %. 101 82-114 05/16/19 18:41 Toluene-d8 (S) %. 81 82-109 05/16/19 18:41 SO LABORATORY CONTROL SAMPLE: Parameter 128351 Units Spike Conc. LCS Result LCS % Rec % Rec Limits Qualifiers 1,1,1,2-Tetrachloroethane ug/L 50 54.1 108 68-137 1,1,1-Trichloroethane ug/L 50 62.3 125 72-134 1,1,2,2-Tetrachloroethane ug/L 50 46.1 92 51-158 1,1,2-Trichloroethane ug/L 50 59.4 119 78-131 1,1-Dichloroethane ug/L 50 58.3 117 69-151 1,1-Dichloroethene ug/L 50 55.4 111 64-158 1,2,3-Trichloropropane ug/L 50 45.0 90 78-133 1,2-Dibromo-3-chloropropane ug/L 50 45.9 92 58-124 1,2-Dibromoethane (EDB) ug/L 50 57.0 114 71-134 1,2-Dichlorobenzene ug/L 50 51.7 103 70-135 1,2-Dichloroethane ug/L 50 56.8 114 72-129 1,2-Dichloropropane ug/L 50 52.0 104 64-135 1,4-Dichlorobenzene ug/L 50 50.2 100 70-131 2-Butanone (MEK) ug/L 100 84.5 84 52-143 2-Hexanone ug/L 100 83.6 84 61-136 4-Methyl-2-pentanone (MIBK) ug/L 100 92.5 93 71-129 Acetone ug/L 100 73.8 74 48-224 Acrylonitrile ug/L 200 189 95 66-154 Benzene ug/L 50 57.6 115 68-132 Bromochloromethane ug/L 50 69.3 139 73-133 L1 Bromodichloromethane ug/L 50 50.8 102 67-121 Bromoform ug/L 50 51.5 103 57-125 Bromomethane ug/L 50 43.3 87 35-156 Carbon disulfide ug/L 100 98.3 98 47-141 Carbon tetrachloride ug/L 50 60.9 122 66-122 Chlorobenzene ug/L 50 49.3 99 71-126 Chloroethane ug/L 50 41.7 83 43-143 Chloroform ug/L 50 58.5 117 71-136 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 05/21 /2019 12:08 PM without the written consent of Pace Analytical Services, LLC. Page 23 of 30 aceAnalytical -pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: BURKE CO. EAST BURKE Pace Project No.: 92428709 LABORATORY CONTROL SAMPLE: Parameter 128351 Units Spike LCS Conc. Result Chloromethane ug/L 50 cis-1,2-Dichloroethene ug/L 50 cis-1,3-Dichloropropene ug/L 50 Dibromochloromethane ug/L 50 Dibromomethane ug/L 50 Ethylbenzene ug/L 50 lodomethane ug/L 100 m&p-Xylene ug/L 100 Methylene Chloride ug/L 50 o-Xylene ug/L 50 Styrene ug/L 50 Tetrachloroethene ug/L 50 Toluene ug/L 50 trans-1,2-Dichloroethene ug/L 50 trans- 1,3-Dichloropropene ug/L 50 trans-1,4-Dichloro-2-butene ug/L 100 Trichloroethene ug/L 50 Trichlorofluoromethane ug/L 50 Vinyl acetate ug/L 50 Vinyl chloride ug/L 50 Xylene (Total) ug/L 150 1,2-Dichloroethane-d4 (S) %. 4-Bromofluorobenzene (S) %. Dibromofluoromethane (S) %. Toluene-d8 (S) %. LCS % Rec % Rec Limits Qualifiers 40.2 80 47-123 v2 63.5 127 74-131 52.1 104 78-120 55.6 111 65-115 62.7 125 79-129 49.5 99 68-129 111 111 49-154 103 103 67-137 58.2 116 61-147 53.7 107 52-141 56.4 113 77-128 64.9 130 51-139 55.5 111 60-133 59.3 119 69-144 51.9 104 74-128 65.8 66 61-139 49.7 99 73-126 51.7 103 55-132 47.0 94 52-141 47.1 94 50-133 157 105 78-132 94 81-119 90 82-120 112 82-114 83 82-109 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 128504 MS 92428710009 Spike Parameter Units Result Conc. MSD Spike Conc. 128505 MS Result MSD Result MS % Rec MSD % Rec % Rec Limits RPD Max RPD Qual 1,1,1,2-Tetrachloroethane ug/L ND 50 50 41.9 46.7 84 93 68-137 11 11 1,1,1-Trichloroethane ug/L ND 50 50 57.9 62.0 116 124 66-142 7 11 1,1,2,2-Tetrachloroethane ug/L ND 50 50 33.3 36.9 67 74 39-171 10 13 1,1,2-Trichloroethane ug/L ND 50 50 44.4 52.1 89 104 73-136 16 12 R1 1,1-Dichloroethane ug/L ND 50 50 50.9 54.8 102 110 66-155 8 15 1,1-Dichloroethene ug/L ND 50 50 60.0 66.6 120 133 33-181 10 34 1,2,3-Trichloropropane ug/L ND 50 50 30.8 34.1 62 68 78-133 10 14 M1 1,2-Dibromo-3- ug/L ND 50 50 29.7 33.3 59 67 58-124 11 15 chloropropane 1,2-Dibromoethane (EDB) ug/L ND 50 50 44.1 50.4 88 101 71-134 13 12 R1 1,2-Dichlorobenzene ug/L ND 50 50 37.6 44.3 75 89 69-135 16 10 R1 1,2-Dichloroethane ug/L ND 50 50 47.4 51.7 95 103 36-159 9 10 1,2-Dichloropropane ug/L ND 50 50 42.3 49.1 85 98 68-132 15 11 R1 1,4-Dichlorobenzene ug/L ND 50 50 35.7 42.2 71 84 49-153 17 9 R1 2-Butanone (MEK) ug/L ND 100 100 67.0 63.9 67 64 10-189 5 23 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 05/21 /2019 12:08 PM without the written consent of Pace Analytical Services, LLC. Page 24 of 30 aceAnalytical -pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: BURKE CO. EAST BURKE Pace Project No.: 92428709 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 128504 128505 Parameter Units 2-Hexanone ug/L 4-Methyl-2-pentanone ug/L (MIBK) Acetone ug/L Acrylonitrile ug/L Benzene ug/L Bromochloromethane ug/L Bromodichloromethane ug/L Bromoform ug/L Bromomethane ug/L Carbon disulfide ug/L Carbon tetrachloride ug/L Chlorobenzene ug/L Chloroethane ug/L Chloroform ug/L Chloromethane ug/L cis-1,2-Dichloroethene ug/L cis-1,3-Dichloropropene ug/L Dibromochloromethane ug/L Dibromomethane ug/L Ethylbenzene ug/L lodomethane ug/L m&p-Xylene ug/L Methylene Chloride ug/L o-Xylene ug/L Styrene ug/L Tetrachloroethene ug/L Toluene ug/L trans-1,2-Dichloroethene ug/L trans-1,3-Dichloropropene ug/L trans-1,4-Dichloro-2-butene ug/L Trichloroethene ug/L Trichlorofluoromethane ug/L Vinyl acetate ug/L Vinyl chloride ug/L Xylene (Total) ug/L 1,2-Dichloroethane-d4 (S) %. 4-Bromofluorobenzene (S) %. Dibromofluoromethane (S) %. Toluene-d8 (S) %. MS MSD 92428710009 Spike Spike MS MSD Result Conc. Conc. Result Result ND 100 100 59.3 66.1 ND 100 100 67.2 69.9 ND 100 100 69.5 71.1 ND 200 200 154 160 ND 50 50 49.6 54.6 ND 50 50 56.8 61.1 ND 50 50 40.3 46.4 ND 50 50 37.9 42.3 ND 50 50 34.9 41.7 ND 100 100 104 113 ND 50 50 60.4 64.1 ND 50 50 39.0 43.7 ND 50 50 41.3 42.2 ND 50 50 49.5 55.2 ND 50 50 37.9 41.8 ND 50 50 51.8 58.4 ND 50 50 37.3 42.6 ND 50 50 43.8 50.0 ND 50 50 48.5 55.6 ND 50 50 39.6 44.2 ND 100 100 108 118 ND 100 100 81.4 91.8 ND 50 50 48.0 55.9 ND 50 50 42.0 47.1 ND 50 50 43.2 49.0 ND 50 50 53.5 61.8 ND 50 50 45.4 51.5 ND 50 50 53.1 59.5 ND 50 50 37.1 42.4 ND 100 100 46.1 50.7 ND 50 50 40.5 46.5 ND 50 50 59.8 66.4 ND 50 50 53.0 57.0 ND 50 50 47.9 51.8 ND 150 150 123 139 MS % Rec 59 67 69 77 99 114 81 76 70 104 121 78 83 99 76 104 75 88 97 79 108 81 96 84 86 107 91 106 74 46 81 120 106 96 82 97 86 109 82 MSD % Rec % Rec Limits 66 40-135 70 30-177 71 44-223 80 13-189 109 66-139 122 73-133 93 57-120 85 48-128 83 10-187 113 47-141 128 58-127 87 63-137 84 52-146 110 74-137 84 41-127 117 71-138 85 32-145 100 52-116 111 79-129 88 31-174 118 49-154 92 27-179 112 61-146 94 52-141 98 77-128 124 36-155 103 52-146 119 61-152 85 37-146 51 61-139 93 61-141 133 51-141 114 52-141 104 22-156 93 78-132 96 81-119 89 82-120 109 82-114 82 82-109 Max RPD RPD Qual 11 18 4 10 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 05/21 /2019 12:08 PM without the written consent of Pace Analytical Services, LLC. 2 14 4 12 10 10 7 13 14 13 R1 11 13 18 32 9 322 6 14 M1 12 10 R1 2 16 11 9 R1 10 10 v2 12 16 13 12 R1 13 13 14 14 11 10 R1 8 30 12 10 R1 15 15 11 65 13 14 14 14 13 11 R1 11 14 13 12 R1 9 12 M1 14 12 R1 10 13 7 14 8 26 12 7 RS Page 25 of 30 aceAnalytical —pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: BURKE CO. EAST BURKE Pace Project No.: 92428709 QC Batch: 475719 Analysis Method: EPA 8260D Mod. QC Batch Method: EPA 8260D Mod. Analysis Description: 8260D MSV SIM Associated Lab Samples: 92428709001, 92428709002, 92428709003, 92428709004, 92428709005, 92428709006 METHOD BLANK: 2578023 Matrix: Water Associated Lab Samples: 92428709001, 92428709002, 92428709003, 92428709004, 92428709005, 92428709006 Blank Reporting Parameter Units Result Limit MDL Analyzed Qualifiers 1,4-Dioxane (p-Dioxane) ug/L ND 2.0 1.2 05/16/19 12:43 1,2-Dichloroethane-d4 (S) % 95 50-150 05/16/19 12:43 Toluene-d8 (S) % 106 50-150 05/16/19 12:43 LABORATORY CONTROL SAMPLE: 2578024 Spike LCS LCS % Rec Parameter Units Conc. Result % Rec Limits Qualifiers 1,4-Dioxane(p-Dioxane) ug/L 20 17.7 89 70-130 1,2-Dichloroethane-d4 (S) % 103 50-150 Toluene-d8(S) % 107 50-150 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2578025 2578026 MS MSD 92427335014 Spike Spike MS MSD MS MSD % Rec Max Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual 1,4-Dioxane(p-Dioxane) ug/L 8.2 20 20 26.0 30.0 89 109 50-150 14 30 1,2-Dichloroethane-d4 (S) % 104 107 50-150 30 Toluene-d8 (S) % 109 108 50-150 30 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 05/21 /2019 12:08 PM without the written consent of Pace Analytical Services, LLC. Page 26 of 30 Pace Analytical Services, LLC ceAnalX cal ® 9800 Kiney Ave. Suite 100 Huntersville, NC 28078078 www.pacelabs.com (704)875-9092 QUALIFIERS Project: BURKE CO. EAST BURKE Pace Project No.: 92428709 DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL -Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean -Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA Method 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI -The NELAC Institute. LABORATORIES PASI-A Pace Analytical Services - Asheville PASI-C Pace Analytical Services - Charlotte PASI-GA Pace Analytical Services - Atlanta, GA ANALYTE QUALIFIERS B Analyte was detected in the associated method blank. L1 Analyte recovery in the laboratory control sample (LCS) was above QC limits. Results for this analyte in associated samples may be biased high. M1 Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery. R1 RPD value was outside control limits. RS The RPD value in one of the constituent analytes was outside the control limits. SO Surrogate recovery outside laboratory control limits. v2 The continuing calibration verification was below the method acceptance limit. The analyte was not detected in the associated samples and the sensitivity of the instrument was verified with a reporting limit check standard. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 05/21 /2019 12:08 PM without the written consent of Pace Analytical Services, LLC. Page 27 of 30 aceAnalytical —pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA CROSS REFERENCE TABLE Project: Pace Project No.: BURKE CO. EAST BURKE 92428709 Analytical Lab ID Sample ID QC Batch Method QC Batch Analytical Method Batch 92428709001 1202-MW1 EPA 3010A 475853 EPA 6010D 475974 92428709002 1202-MW2 EPA 3010A 475853 EPA 6010D 475974 92428709003 1202-MW3 EPA 3010A 475853 EPA 6010D 475974 92428709004 1202-AMW1 EPA 3010A 475853 EPA 6010D 475974 92428709005 1202-SW1 EPA 3010A 475853 EPA 6010D 475974 92428709006 1202-SW2 EPA 3010A 475853 EPA 6010D 475974 92428709001 1202-MW1 EPA 3010A 476009 EPA 6020B 476047 92428709002 1202-MW2 EPA 3010A 476009 EPA 6020B 476047 92428709003 1202-MW3 EPA 3010A 476009 EPA 6020B 476047 92428709004 1202-AMW1 EPA 3010A 476009 EPA 6020B 476047 92428709005 1202-SW1 EPA 3010A 476009 EPA 6020B 476047 92428709006 1202-SW2 EPA 3010A 476009 EPA 6020B 476047 92428709001 1202-MW1 EPA 8260D 28498 92428709002 1202-MW2 EPA 8260D 28498 92428709003 1202-MW3 EPA 8260D 28498 92428709004 1202-AMW1 EPA 8260D 28498 92428709005 1202-SW1 EPA 8260D 28498 92428709006 1202-SW2 EPA 8260D 28498 92428709001 1202-MW1 EPA 8260D Mod. 475719 92428709002 1202-MW2 EPA 8260D Mod. 475719 92428709003 1202-MW3 EPA 8260D Mod. 475719 92428709004 1202-AMW1 EPA 8260D Mod. 475719 92428709005 1202-SW1 EPA 8260D Mod. 475719 92428709006 1202-SW2 EPA 8260D Mod. 475719 Date: 05/21 /2019 12:08 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 28 of 30 e c3C2AnaViCal Document Name: Sample Condition Upon Receipt(SCUR) Document Revised: February 7, 2018 Page 1 of 2 Document No.: F-CAR-CS-033-Rev.06 Issuing Authority: Pace Carolinas quality Office Laboratory receiving samples: Asheville ❑ Eden[] Greenwood ❑ Huntersville Raleigh❑ Mechanicsville[] Sample Condition. Client Name: WO# ' 9242V r 09 Upon Receipt Projectlt: I F EN UPS usP5 Client Caurler: ❑ ed- ❑ ❑ ❑ ❑ Commercial lace ❑other: 92428709 Custody Seal Present? ❑Yes ❑N-o' Seals Intact? ❑Yes [Jff r z ]( Oate/Initials Person Examining Contents: Packing Material: []Bubble Wrap efaubble Sags ❑None ❑ Other Biological Tissue Frozen? Thermometer; [R Gun I[:]Yes 2 o ❑N/A D: 92TQ48 . Type of Ice: et ❑Brae ©None Cooler Temp ('C): l Correction Factor: Add/Subtract ('C) Q.0 —�-`----- -7 Temp shouEd be above freezing to 6°C Cooler Temp Corrected {'C}; J _ []Samples out of temp criteria. Samples on ice, cooling process hasbegun USDA Regulated Soil (01N/A, water sample) Did samples originate in a quarantine zone within the United Slates: CA, NY, at SC (check maps)? Did samples originate from a Foreign source (internationally, ❑Yes 00 including mawanana ruerw mmolr vies uiro Comments/Discrepancy; Chain of Custody Present? .6es ONO El N/A I. Samples Arrived within Hold Time? Yes [:]No ❑N/A 2, Short Hold Time Analysls (<72 hr.)? ❑Yes No ❑N/A 3. Rush Turn Around Time Requested? Dyes ON ❑N/A 4. Sufficient Volume? re []No []N/A S. Correct Containers Used? Yew ❑No ❑N/A 6. -Pace Containers Used? i�es ❑No ❑N/A Containers Intact? 2 es [:]No ❑N/A 7. Dissolved analysis: Samples Field Filtered? Dyes ❑Na ,TN/A S. Sample Labels Match COC? Yes []No ❑N/A 9. -Includes Date/Time/ID/Analysis Matrix: Headspace in VOA Vials (55-6mm)? Des El Nk IfflIA 10. Trip Blank Present? []Yes ZINO ❑N/A 11. Trip Blank Custody Seals Present? ❑Yes ❑No N/A COMMENTS/SAMPLE DISCREPANCY Lot ID of split containers: CLIENT NOTIFICAT ION/RE$OLUTION Field Data Required? ❑Yes ONO Pe+ser}cer+ HEed: nate/Time: Project Manager SCURF Review: 6ffi�"1 Date: Project Manager SRF Review: fy 1J Y �Date: Page 29 of 30 a ceAnalytical Document Name: Sample Condition Upon Receipt(SCUR) Document Revised: February 7, 2018 Page 1 of 2 Document No.: Issuing Authority: F-CAR•C5.033•Rev.06 Pace Carolinas Quality Office *Check mark top half of box if pH and/or dechlorination is verified and within the acceptance range for preservation samples. Exceptions: VGA, Collform,TOC, Oil and Grease, DRO/8015 (water) DOC, LLHg **Bottom half of box is to list number of bottle Project # WV # ; 924287a9 PM: NMG Due Date: 05/23/19 CLIENT: 92-Joyce Eng 4 -0U Z ¢ 2 a 2 z m N x '~ $ p z m x 7 z ° N W N S N V z Z a z M O a a W c N a c u d v r u $ N � a ON u a m Z Q ro d QV � a ..-. O Z h [7 t m a v T a = n a } q = a v E f ¢ z 2 rr1 z 2 D O r " u�i 5 c7 a Y ? U v '° 0. ° Z = 7 n o N c m E N E �!1 E o -0 E L' o M 2 4 ¢ o ¢ ¢ OO `v n„ ' v E d fof to E a c E E f Y W — d m 7 a oo 7 a m a go Ga. m z a m N a m U a m u�. 3 YM l7 a 2 rl C9 a 7 en l7 a ,yNE 0 r4 0 a N M W a Q M 0 a S (n l? a q Qt 0 > Ot W > d Q! L7 o y Q O a Y L9 a F Y1 a 0 F IY a yr a a m 7 U a L to > C7 o 1 N X N I `c N\ 2 NN rI I I I 3 }1 \N\u I I -�S 4 N\ I I I IN 5 N I X, N \\\6 1 5 I NXN� N \\\' �'_ �` jh] I NN 7 N'\ 8 N NN\\ \-\-\N N\ N, 10 \\\N . it 1 � \ N\ 12 pH Adjustment Log for Preserved Samples sample ID Type of Preservative pH upon receipt Date preservation adjusted Time preservation adjusted Amount of Preservative added Lot 0 Note: Whenevefthere is a discrepancy affecting North Carolina compliance samples, a copy of this forrrm will besent to the North Carolina DEHNR Certification Office (i.e. Out of hold, incorrect preservative, out of temp, incorrect containers. Page 30 of 30 ceAna"ca" Section A SAMPLE One Cha ecter per I (AZ. M1,-) Sarryde Ids must be UI CHAIN -OF -CUSTODY / Analytical Request Document The Chain -of -Custody is a LEGAL DOCUMENT. All relevant fields must be completed accurately. Section e Section C Requiretl Project Info 'ion: invoice Information: ach Pa e : t Of t AheiHion: Lecia Jones Report To: Van 13urt COPY To: Gretta El er Company Name: La Bella Associates 1 Purchase Oicer No. Addroes: 1664 Ombv Lane, Richmond, VA 2322 t.- "*'" --R'- ulatu' Client Container Project ID: Burk Omer Number.' Co. -East Burke Pace Pace Quote Reference: Project Manager. Nicole GaslorowSki x -:+s+ -�x.=:staff/Ldfa`hon'x"';�+@_',,:� S v Pace Profile #: 2327-5 North $✓:.>, Carolina �,u Filterea MTRIx cope o COLLECTED 0 Preservatives crinlung Water M water wr u 0 4 westewmer M _ 'Mw £olbSorN SL 4 O Oil oL m START END Wipe W Q Z > m c AWnP N.r o Q ¢ E H TE TIME DATE TIME e vai a n x x x O z of z 2 .Q., 8%.. U U d_Z "m AT G Is/(o/I ®gSD >C 0 z CT13 G s/&/Iq pqL) x x x x x x �( ovr G 5/6/Iq 12o9 x x WTG s/� lzys x x x X X oIT G /6 19 1135 ie x x x x x var c /6/ 12H0 x x x -- .).� _o ..v/e/^�J .� '.. _ ,:_ L7AVOj _ E' MP E`.-N Jr J, ._, //✓� Iwo -. 1JAM N SIGe 1U 10Sp PRINT Name of SAMPLER: TG vi s liud�n Samani� 12 m a U LOO� y1+ SIGNATURE of SAMPLER: — DATE Signed: i $ �- m m S /8/2oI aceAnalytical _pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 May 20, 2019 Mr. Van Burbach Joyce Engineering -Greensboro 2211 West Meadowview Rd Boone Bldg, Suite 101 Greensboro, NC 27407 RE: Project: Burke Co. Blanks EB&Kirksey Pace Project No.: 92428652 Dear Mr. Burbach: Enclosed are the analytical results for sample(s) received by the laboratory on May 09, 2019. The results relate only to the samples included in this report. Results reported herein conform to the most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual, where applicable, unless otherwise noted in the body of the report. If you have any questions concerning this report, please feel free to contact me. Sincerely, ��i Flo _ _.1I , .�: Nicole Gasiorowski nicole.gasiorowski@pacelabs.com (704)875-9092 Project Manager Enclosures cc: Van Burbach, Joyce Engineering -NC Gretta Eller, LaBella Associates, D.P.C. Daniel Girdner, LaBella Associates, D.P.C. Rochelle Mesubed, Joyce Engineering Miguel Vazquez, Joyce Engineering REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 1 of 21 aceAnalytical —pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Project: Burke Co. Blanks EB&Kirksey Pace Project No.: 92428652 Atlanta Certification IDs 110 Technology Parkway Peachtree Corners, GA 30092 Florida DOH Certification #: E87315 Georgia DW Inorganics Certification #: 812 Georgia DW Microbiology Certification #: 812 Charlotte Certification IDs 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 Louisiana/NELAP Certification # LA170028 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 Asheville Certification IDs 2225 Riverside Drive, Asheville, NC 28804 Florida/NELAP Certification #: E87648 Massachusetts Certification #: M-NC030 North Carolina Drinking Water Certification #: 37712 CERTIFICATIONS North Carolina Certification #: 381 South Carolina Certification #: 98011001 Virginia Certification #: 460204 South Carolina Certification #: 99006001 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Virginia/VELAP Certification #: 460221 North Carolina Wastewater Certification #: 40 South Carolina Certification #: 99030001 Virginia/VELAP Certification #: 460222 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 2 of 21 aceAnalytical —pacelabsxom Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 SAMPLE SUMMARY Project: Burke Co. Blanks EB&Kirksey Pace Project No.: 92428652 Lab ID Sample ID Matrix Date Collected Date Received 92428652001 92428652002 Field Blank Trip Blank Water Water 05/06/19 19:23 05/06/19 06:00 05/09/19 09:31 05/09/19 09:31 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 3 of 21 aceAnalytical —pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 SAMPLE ANALYTE COUNT Project: Pace Project No.: Burke Co. Blanks EB&Kirksey 92428652 Analytes Lab ID Sample ID Method Analysts Reported Laboratory 92428652001 Field Blank EPA 601 OD IDS 14 PASI-A EPA 6020E JOR 1 PASI-A EPA 8260D LIH 53 PASI-GA EPA 8260D Mod. SAS 3 PASI-C 92428652002 Trip Blank EPA 8260D LIH 53 PASI-GA EPA 8260D Mod. SAS 3 PASI-C REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 4 of 21 aceAnalytical -pacelabsxom Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: Burke Co. Blanks EB&Kirksey Pace Project No.: 92428652 Sample: Field Blank Lab ID: 92428652001 Collected: 05/06/19 19:23 Received: 05/09/19 09:31 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 6010 MET ICP Analytical Method: EPA 6010D Preparation Method: EPA 3010A Antimony ND ug/L 5.0 3.9 1 05/16/19 18:40 05/20/19 07:28 7440-36-0 Arsenic ND ug/L 10.0 5.0 1 05/16/19 18:40 05/20/19 07:28 7440-38-2 Barium ND ug/L 5.0 2.5 1 05/16/19 18:40 05/20/19 07:28 7440-39-3 Beryllium ND ug/L 1.0 0.50 1 05/16/19 18:40 05/20/19 07:28 7440-41-7 Cadmium ND ug/L 1.0 0.50 1 05/16/19 18:40 05/20/19 07:28 7440-43-9 Chromium ND ug/L 5.0 2.5 1 05/16/19 18:40 05/20/19 07:28 7440-47-3 Cobalt ND ug/L 5.0 2.5 1 05/16/19 18:40 05/20/19 07:28 7440-48-4 Copper ND ug/L 5.0 2.5 1 05/16/19 18:40 05/20/19 07:28 7440-50-8 Lead ND ug/L 5.0 2.5 1 05/16/19 18:40 05/20/19 07:28 7439-92-1 Nickel ND ug/L 5.0 2.5 1 05/16/19 18:40 05/20/19 07:28 7440-02-0 Selenium ND ug/L 10.0 5.0 1 05/16/19 18:40 05/20/19 07:28 7782-49-2 Silver ND ug/L 5.0 2.5 1 05/16/19 18:40 05/20/19 07:28 7440-22-4 Vanadium ND ug/L 5.0 2.5 1 05/16/19 18:40 05/20/19 07:28 7440-62-2 Zinc ND ug/L 10.0 5.0 1 05/16/19 18:40 05/20/19 07:28 7440-66-6 6020 MET ICPMS Analytical Method: EPA 6020E Preparation Method: EPA 3010A Thallium ND ug/L 0.10 0.060 1 05/16/19 18:40 05/18/1910:09 7440-28-0 8260D MSV Water, Extend Analytical Method: EPA 8260D 1,1,1,2-Tetrachloroethane ND ug/L 1.0 0.32 1 05/15/19 23:42 630-20-6 1,1,1-Trichloroethane ND ug/L 1.0 0.38 1 05/15/19 23:42 71-55-6 1,1,2,2-Tetrachloroethane ND ug/L 1.0 0.53 1 05/15/19 23:42 79-34-5 1,1,2-Trichloroethane ND ug/L 1.0 0.59 1 05/15/19 23:42 79-00-5 1,1-Dichloroethane ND ug/L 1.0 0.41 1 05/15/19 23:42 75-34-3 1,1-Dichloroethene ND ug/L 1.0 0.72 1 05/15/19 23:42 75-35-4 1,2,3-Trichloropropane ND ug/L 1.0 0.46 1 05/15/19 23:42 96-18-4 1,2-Dibromo-3-chloropropane ND ug/L 2.0 0.55 1 05/15/19 23:42 96-12-8 1,2-Dibromoethane (EDB) ND ug/L 2.0 0.28 1 05/15/19 23:42 106-93-4 1,2-Dichlorobenzene ND ug/L 1.0 0.49 1 05/15/19 23:42 95-50-1 1,2-Dichloroethane ND ug/L 1.0 0.67 1 05/15/19 23:42 107-06-2 1,2-Dichloropropane ND ug/L 1.0 0.60 1 05/15/19 23:42 78-87-5 1,4-Dichlorobenzene ND ug/L 1.0 0.58 1 05/15/19 23:42 106-46-7 2-Butanone (MEK) ND ug/L 5.0 3.2 1 05/15/19 23:42 78-93-3 2-Hexanone ND ug/L 5.0 0.89 1 05/15/19 23:42 591-78-6 4-Methyl-2-pentanone (MIBK) ND ug/L 5.0 0.86 1 05/15/19 23:42 108-10-1 Acetone ND ug/L 25.0 8.2 1 05/15/19 23:42 67-64-1 Acrylonitrile ND ug/L 50.0 2.5 1 05/15/19 23:42 107-13-1 Benzene ND ug/L 1.0 0.20 1 05/15/19 23:42 71-43-2 Bromochloromethane ND ug/L 1.0 0.50 1 05/15/19 23:42 74-97-5 Bromodichloromethane ND ug/L 1.0 0.36 1 05/15/19 23:42 75-27-4 Bromoform ND ug/L 1.0 0.55 1 05/15/19 23:42 75-25-2 Bromomethane ND ug/L 2.0 0.95 1 05/15/19 23:42 74-83-9 Carbon disulfide ND ug/L 10.0 0.79 1 05/15/19 23:42 75-15-0 Carbon tetrachloride ND ug/L 1.0 0.42 1 05/15/19 23:42 56-23-5 L1 Chlorobenzene ND ug/L 1.0 0.53 1 05/15/19 23:42 108-90-7 Chloroethane ND ug/L 1.0 0.52 1 05/15/19 23:42 75-00-3 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 05/20/2019 05:10 PM without the written consent of Pace Analytical Services, LLC. Page 5 of 21 aceAnalytical -pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: Burke Co. Blanks EB&Kirksey Pace Project No.: 92428652 Sample: Field Blank Lab ID: 92428652001 Collected: 05/06/19 19:23 Received: 05/09/19 09:31 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 8260D MSV Water, Extend Chloroform Chloromethane Dibromochloromethane Dibromomethane Ethylbenzene lodomethane Methylene Chloride Styrene Tetrachloroethene Toluene Trichloroethene Trichlorofluoromethane Vinyl acetate Vinyl chloride Xylene (Total) cis-1,2-Dichloroethene cis-1,3-Dichloropropene m&p-Xylene o-Xylene trans-1,2-Dichloroethene trans- 1,3-Dichloropropene trans-1,4-Dichloro-2-butene Surrogates 1,2-Dichloroethane-d4 (S) Dibromofluoromethane (S) 4-Bromofluorobenzene (S) Toluene-d8 (S) 8260D MSV SIM 1,4-Dioxane (p-Dioxane) Surrogates 1,2-Dichloroethane-d4 (S) Toluene-d8 (S) Date: 05/20/2019 05:10 PM Analytical Method: EPA 8260D ND ug/L 1.0 0.58 1 05/15/19 23:42 67-66-3 ND ug/L 1.0 0.38 1 05/15/19 23:42 74-87-3 ND ug/L 1.0 0.31 1 05/15/19 23:42 124-48-1 ND ug/L 1.0 0.62 1 05/15/19 23:42 74-95-3 ND ug/L 1.0 0.45 1 05/15/19 23:42 100-41-4 ND ug/L 10.0 3.1 1 05/15/19 23:42 74-88-4 ND ug/L 1.0 0.50 1 05/15/19 23:42 75-09-2 ND ug/L 1.0 0.50 1 05/15/19 23:42 100-42-5 ND ug/L 1.0 0.78 1 05/15/19 23:42 127-18-4 ND ug/L 1.0 0.31 1 05/15/19 23:42 108-88-3 ND ug/L 1.0 0.34 1 05/15/19 23:42 79-01-6 ND ug/L 1.0 0.51 1 05/15/19 23:42 75-69-4 ND ug/L 2.0 0.42 1 05/15/19 23:42 108-05-4 ND ug/L 1.0 0.60 1 05/15/19 23:42 75-01-4 ND ug/L 2.0 1.5 1 05/15/19 23:42 1330-20-7 ND ug/L 1.0 0.66 1 05/15/19 23:42 156-59-2 ND ug/L 1.0 0.22 1 05/15/19 23:42 10061-01-5 ND ug/L 1.0 0.92 1 05/15/19 23:42 179601-23-1 ND ug/L 1.0 0.54 1 05/15/19 23:42 95-47-6 ND ug/L 1.0 0.46 1 05/15/19 23:42 156-60-5 ND ug/L 1.0 0.30 1 05/15/19 23:42 10061-02-6 ND ug/L 5.0 1.6 1 05/15/19 23:42 110-57-6 98 %. 81-119 1 05/15/19 23:42 17060-07-0 107 %. 82-114 1 05/15/19 23:42 1868-53-7 87 %. 82-120 1 05/15/19 23:42 460-00-4 83 %. 82-109 1 05/15/19 23:42 2037-26-5 Analytical Method: EPA 8260D Mod. ND ug/L 2.0 1.2 1 05/16/1913:03 123-91-1 106 % 50-150 1 05/16/1913:03 17060-07-0 108 % 50-150 1 05/16/1913:03 2037-26-5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 6 of 21 aceAnalytical -pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: Burke Co. Blanks EB&Kirksey Pace Project No.: 92428652 Sample: Trip Blank Lab ID: 92428652002 Collected: 05/06/19 06:00 Received: 05/09/19 09:31 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 8260D MSV Water, Extend Analytical Method: EPA 8260D 1,1,1,2-Tetrachloroethane ND ug/L 1.0 0.32 1 05/16/19 00:08 630-20-6 1,1,1-Trichloroethane ND ug/L 1.0 0.38 1 05/16/19 00:08 71-55-6 1,1,2,2-Tetrachloroethane ND ug/L 1.0 0.53 1 05/16/19 00:08 79-34-5 1,1,2-Trichloroethane ND ug/L 1.0 0.59 1 05/16/19 00:08 79-00-5 1,1-Dichloroethane ND ug/L 1.0 0.41 1 05/16/19 00:08 75-34-3 1,1-Dichloroethene ND ug/L 1.0 0.72 1 05/16/19 00:08 75-35-4 1,2,3-Trichloropropane ND ug/L 1.0 0.46 1 05/16/19 00:08 96-18-4 1,2-Dibromo-3-chloropropane ND ug/L 2.0 0.55 1 05/16/19 00:08 96-12-8 1,2-Dibromoethane (EDB) ND ug/L 2.0 0.28 1 05/16/19 00:08 106-93-4 1,2-Dichlorobenzene ND ug/L 1.0 0.49 1 05/16/19 00:08 95-50-1 1,2-Dichloroethane ND ug/L 1.0 0.67 1 05/16/19 00:08 107-06-2 1,2-Dichloropropane ND ug/L 1.0 0.60 1 05/16/19 00:08 78-87-5 1,4-Dichlorobenzene ND ug/L 1.0 0.58 1 05/16/19 00:08 106-46-7 2-Butanone (MEK) ND ug/L 5.0 3.2 1 05/16/19 00:08 78-93-3 2-Hexanone ND ug/L 5.0 0.89 1 05/16/19 00:08 591-78-6 4-Methyl-2-pentanone (MIBK) ND ug/L 5.0 0.86 1 05/16/19 00:08 108-10-1 Acetone ND ug/L 25.0 8.2 1 05/16/19 00:08 67-64-1 Acrylonitrile ND ug/L 50.0 2.5 1 05/16/19 00:08 107-13-1 Benzene ND ug/L 1.0 0.20 1 05/16/19 00:08 71-43-2 Bromochloromethane ND ug/L 1.0 0.50 1 05/16/19 00:08 74-97-5 Bromodichloromethane ND ug/L 1.0 0.36 1 05/16/19 00:08 75-27-4 Bromoform ND ug/L 1.0 0.55 1 05/16/19 00:08 75-25-2 Bromomethane ND ug/L 2.0 0.95 1 05/16/19 00:08 74-83-9 Carbon disulfide ND ug/L 10.0 0.79 1 05/16/19 00:08 75-15-0 Carbon tetrachloride ND ug/L 1.0 0.42 1 05/16/19 00:08 56-23-5 L1 Chlorobenzene ND ug/L 1.0 0.53 1 05/16/19 00:08 108-90-7 Chloroethane ND ug/L 1.0 0.52 1 05/16/19 00:08 75-00-3 Chloroform ND ug/L 1.0 0.58 1 05/16/19 00:08 67-66-3 Chloromethane ND ug/L 1.0 0.38 1 05/16/19 00:08 74-87-3 Dibromochloromethane ND ug/L 1.0 0.31 1 05/16/19 00:08 124-48-1 Dibromomethane ND ug/L 1.0 0.62 1 05/16/19 00:08 74-95-3 Ethylbenzene ND ug/L 1.0 0.45 1 05/16/19 00:08 100-41-4 lodomethane ND ug/L 10.0 3.1 1 05/16/19 00:08 74-88-4 Methylene Chloride ND ug/L 1.0 0.50 1 05/16/19 00:08 75-09-2 Styrene ND ug/L 1.0 0.50 1 05/16/19 00:08 100-42-5 Tetrachloroethene ND ug/L 1.0 0.78 1 05/16/19 00:08 127-18-4 Toluene ND ug/L 1.0 0.31 1 05/16/19 00:08 108-88-3 Trichloroethene ND ug/L 1.0 0.34 1 05/16/19 00:08 79-01-6 Trichlorofluoromethane ND ug/L 1.0 0.51 1 05/16/19 00:08 75-69-4 Vinyl acetate ND ug/L 2.0 0.42 1 05/16/19 00:08 108-05-4 Vinyl chloride ND ug/L 1.0 0.60 1 05/16/19 00:08 75-01-4 Xylene (Total) ND ug/L 2.0 1.5 1 05/16/19 00:08 1330-20-7 cis-1,2-Dichloroethene ND ug/L 1.0 0.66 1 05/16/19 00:08 156-59-2 cis-1,3-Dichloropropene ND ug/L 1.0 0.22 1 05/16/19 00:08 10061-01-5 m&p-Xylene ND ug/L 1.0 0.92 1 05/16/19 00:08 179601-23-1 o-Xylene ND ug/L 1.0 0.54 1 05/16/19 00:08 95-47-6 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 05/20/2019 05:10 PM without the written consent of Pace Analytical Services, LLC. Page 7 of 21 aceAnalytical —pacelabsxom Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: Burke Co. Blanks EB&Kirksey Pace Project No.: 92428652 Sample: Trip Blank Lab ID: 92428652002 Collected: 05/06/19 06:00 Received: 05/09/19 09:31 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 8260D MSV Water, Extend Analytical Method: EPA 8260D trans-1,2-Dichloroethene ND ug/L 1.0 0.46 1 05/16/19 00:08 156-60-5 trans- 1,3-Dichloropropene ND ug/L 1.0 0.30 1 05/16/19 00:08 10061-02-6 trans-1,4-Dichloro-2-butene ND ug/L 5.0 1.6 1 05/16/19 00:08 110-57-6 Surrogates 1,2-Dichloroethane-d4 (S) 99 %. 81-119 1 05/16/19 00:08 17060-07-0 Dibromofluoromethane (S) 105 %. 82-114 1 05/16/19 00:08 1868-53-7 4-Bromofluorobenzene (S) 86 %. 82-120 1 05/16/19 00:08 460-00-4 Toluene-d8 (S) 83 %. 82-109 1 05/16/19 00:08 2037-26-5 8260D MSV SIM Analytical Method: EPA 8260D Mod. 1,4-Dioxane (p-Dioxane) ND ug/L 2.0 1.2 1 05/16/19 13:23 123-91-1 Surrogates 1,2-Dichloroethane-d4 (S) 98 % 50-150 1 05/16/19 13:23 17060-07-0 Toluene-d8 (S) 108 % 50-150 1 05/16/19 13:23 2037-26-5 Date: 05/20/2019 05:10 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 8 of 21 aceAnalytical —pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: Burke Co. Blanks EB&Kirksey Pace Project No.: 92428652 QC Batch: 475606 Analysis Method: EPA 6010D QC Batch Method: EPA 3010A Analysis Description: 6010 MET Associated Lab Samples: 92428652001 METHOD BLANK: 2577609 Associated Lab Samples: 92428652001 Parameter Units Matrix: Blank Result Water Reporting Limit MDL Analyzed Antimony ug/L ND 5.0 3.9 05/20/19 06:13 Arsenic ug/L ND 10.0 5.0 05/20/19 06:13 Barium ug/L ND 5.0 2.5 05/20/19 06:13 Beryllium ug/L ND 1.0 0.50 05/20/19 06:13 Cadmium ug/L ND 1.0 0.50 05/20/19 06:13 Chromium ug/L ND 5.0 2.5 05/20/19 06:13 Cobalt ug/L ND 5.0 2.5 05/20/19 06:13 Copper ug/L ND 5.0 2.5 05/20/19 06:13 Lead ug/L ND 5.0 2.5 05/20/19 06:13 Nickel ug/L ND 5.0 2.5 05/20/19 06:13 Selenium ug/L ND 10.0 5.0 05/20/19 06:13 Silver ug/L ND 5.0 2.5 05/20/19 06:13 Vanadium ug/L ND 5.0 2.5 05/20/19 06:13 Zinc ug/L ND 10.0 5.0 05/20/19 06:13 LABORATORY CONTROL SAMPLE: Parameter 2577610 Units Spike Conc. LCS Result LCS % Rec % Rec Limits Antimony ug/L 500 489 98 80-120 Arsenic ug/L 500 463 93 80-120 Barium ug/L 500 503 101 80-120 Beryllium ug/L 500 504 101 80-120 Cadmium ug/L 500 491 98 80-120 Chromium ug/L 500 498 100 80-120 Cobalt ug/L 500 488 98 80-120 Copper ug/L 500 503 101 80-120 Lead ug/L 500 479 96 80-120 Nickel ug/L 500 487 97 80-120 Selenium ug/L 500 484 97 80-120 Silver ug/L 250 250 100 80-120 Vanadium ug/L 500 490 98 80-120 Zinc ug/L 500 482 96 80-120 Qualifiers Qualifiers MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2577611 2577612 MS MSD 92428534001 Spike Spike MS MSD MS MSD % Rec Max Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual Antimony ug/L ND 500 500 498 500 99 100 75-125 1 20 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 05/20/2019 05:10 PM without the written consent of Pace Analytical Services, LLC. Page 9 of 21 aceAnalytical —pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: Pace Project No.: Burke Co. Blanks EB&Kirksey 92428652 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2577611 2577612 MS MSD 92428534001 Spike Spike MS MSD MS MSD % Rec Max Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual Arsenic ug/L ND 500 500 474 476 95 95 75-125 0 20 Barium ug/L 54.1 500 500 560 567 101 103 75-125 1 20 Beryllium ug/L ND 500 500 509 512 102 102 75-125 1 20 Cadmium ug/L ND 500 500 506 507 101 101 75-125 0 20 Chromium ug/L ND 500 500 507 509 101 102 75-125 0 20 Cobalt ug/L ND 500 500 494 496 99 99 75-125 0 20 Copper ug/L ND 500 500 507 508 101 102 75-125 0 20 Lead ug/L ND 500 500 485 488 97 97 75-125 1 20 Nickel ug/L ND 500 500 495 497 99 99 75-125 0 20 Selenium ug/L ND 500 500 515 523 103 105 75-125 2 20 Silver ug/L ND 250 250 254 256 101 102 75-125 1 20 Vanadium ug/L ND 500 500 502 501 100 100 75-125 0 20 Zinc ug/L 10.4 500 500 509 508 100 100 75-125 0 20 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 05/20/2019 05:10 PM without the written consent of Pace Analytical Services, LLC. Page 10 of 21 aceAnalytical —pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: Burke Co. Blanks EB&Kirksey Pace Project No.: 92428652 QC Batch: 475600 Analysis Method: EPA 6020B QC Batch Method: EPA 3010A Analysis Description: 6020 MET Associated Lab Samples: 92428652001 METHOD BLANK: 2577596 Matrix: Water Associated Lab Samples: 92428652001 Blank Reporting Parameter Units Result Limit MDL Analyzed Qualifiers Thallium ug/L ND 0.10 0.060 05/18/19 07:40 LABORATORY CONTROL SAMPLE: 2577597 Spike LCS LCS % Rec Parameter Units Conc. Result % Rec Limits Qualifiers Thallium ug/L 10 9.1 91 80-120 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2577598 2577599 MS MSD 92427326018 Spike Spike MS MSD MS MSD % Rec Max Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual Thallium ug/L ND 10 10 9.2 9.5 92 95 75-125 3 20 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 05/20/2019 05:10 PM without the written consent of Pace Analytical Services, LLC. Page 11 of 21 aceAnalytical -pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: Burke Co. Blanks EB&Kirksey Pace Project No.: 92428652 QC Batch: 28443 Analysis Method: EPA 8260D QC Batch Method: EPA 8260D Analysis Description: 8260D MSV Water, Extend Associated Lab Samples: 92428652001, 92428652002 METHOD BLANK: 128030 Associated Lab Samples: 92428652001, 92428652002 Parameter Units Matrix: Blank Result Water Reporting Limit MDL Analyzed 1,1,1,2-Tetrachloroethane ug/L ND 1.0 0.32 05/15/19 18:29 1,1,1-Trichloroethane ug/L ND 1.0 0.38 05/15/19 18:29 1,1,2,2-Tetrachloroethane ug/L ND 1.0 0.53 05/15/19 18:29 1,1,2-Trichloroethane ug/L ND 1.0 0.59 05/15/19 18:29 1,1-Dichloroethane ug/L ND 1.0 0.41 05/15/19 18:29 1,1-Dichloroethene ug/L ND 1.0 0.72 05/15/19 18:29 1,2,3-Trichloropropane ug/L ND 1.0 0.46 05/15/19 18:29 1,2-Dibromo-3-chloropropane ug/L ND 2.0 0.55 05/15/19 18:29 1,2-Dibromoethane (EDB) ug/L ND 2.0 0.28 05/15/19 18:29 1,2-Dichlorobenzene ug/L ND 1.0 0.49 05/15/19 18:29 1,2-Dichloroethane ug/L ND 1.0 0.67 05/15/19 18:29 1,2-Dichloropropane ug/L ND 1.0 0.60 05/15/19 18:29 1,4-Dichlorobenzene ug/L ND 1.0 0.58 05/15/19 18:29 2-Butanone (MEK) ug/L ND 5.0 3.2 05/15/19 18:29 2-Hexanone ug/L ND 5.0 0.89 05/15/19 18:29 4-Methyl-2-pentanone (MIBK) ug/L ND 5.0 0.86 05/15/19 18:29 Acetone ug/L ND 25.0 8.2 05/15/19 18:29 Acrylonitrile ug/L ND 50.0 2.5 05/15/19 18:29 Benzene ug/L ND 1.0 0.20 05/15/19 18:29 Bromochloromethane ug/L ND 1.0 0.50 05/15/19 18:29 Bromodichloromethane ug/L ND 1.0 0.36 05/15/19 18:29 Bromoform ug/L ND 1.0 0.55 05/15/19 18:29 Bromomethane ug/L ND 2.0 0.95 05/15/19 18:29 Carbon disulfide ug/L ND 10.0 0.79 05/15/19 18:29 Carbon tetrachloride ug/L ND 1.0 0.42 05/15/19 18:29 Chlorobenzene ug/L ND 1.0 0.53 05/15/19 18:29 Chloroethane ug/L ND 1.0 0.52 05/15/19 18:29 Chloroform ug/L ND 1.0 0.58 05/15/19 18:29 Chloromethane ug/L ND 1.0 0.38 05/15/19 18:29 cis-1,2-Dichloroethene ug/L ND 1.0 0.66 05/15/19 18:29 cis-1,3-Dichloropropene ug/L ND 1.0 0.22 05/15/19 18:29 Dibromochloromethane ug/L ND 1.0 0.31 05/15/19 18:29 Dibromomethane ug/L ND 1.0 0.62 05/15/19 18:29 Ethylbenzene ug/L ND 1.0 0.45 05/15/19 18:29 lodomethane ug/L ND 10.0 3.1 05/15/19 18:29 m&p-Xylene ug/L ND 1.0 0.92 05/15/19 18:29 Methylene Chloride ug/L ND 1.0 0.50 05/15/19 18:29 o-Xylene ug/L ND 1.0 0.54 05/15/19 18:29 Styrene ug/L ND 1.0 0.50 05/15/19 18:29 Tetrachloroethene ug/L ND 1.0 0.78 05/15/19 18:29 Toluene ug/L ND 1.0 0.31 05/15/19 18:29 Qualifiers Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 05/20/2019 05:10 PM without the written consent of Pace Analytical Services, LLC. Page 12 of 21 aceAnalytical -pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: Burke Co. Blanks EB&Kirksey Pace Project No.: 92428652 METHOD BLANK: 128030 Associated Lab Samples: Parameter 92428652001, 92428652002 Units Matrix: Blank Result Water Reporting Limit MDL Analyzed Qualifiers trans-1,2-Dichloroethene ug/L ND 1.0 0.46 05/15/19 18:29 trans- 1,3-Dichloropropene ug/L ND 1.0 0.30 05/15/19 18:29 trans-1,4-Dichloro-2-butene ug/L ND 5.0 1.6 05/15/19 18:29 Trichloroethene ug/L ND 1.0 0.34 05/15/19 18:29 Trichlorofluoromethane ug/L ND 1.0 0.51 05/15/19 18:29 Vinyl acetate ug/L ND 2.0 0.42 05/15/19 18:29 Vinyl chloride ug/L ND 1.0 0.60 05/15/19 18:29 Xylene (Total) ug/L ND 2.0 1.5 05/15/19 18:29 1,2-Dichloroethane-d4 (S) %. 96 81-119 05/15/19 18:29 4-Bromofluorobenzene (S) %. 86 82-120 05/15/19 18:29 Dibromofluoromethane (S) %. 101 82-114 05/15/19 18:29 Toluene-d8 (S) %. 84 82-109 05/15/19 18:29 LABORATORY CONTROL SAMPLE: Parameter 128031 Units Spike Conc. LCS Result LCS % Rec % Rec Limits Qualifiers 1,1,1,2-Tetrachloroethane ug/L 50 53.2 106 68-137 1,1,1-Trichloroethane ug/L 50 60.6 121 72-134 1,1,2,2-Tetrachloroethane ug/L 50 44.5 89 51-158 1,1,2-Trichloroethane ug/L 50 56.8 114 78-131 1,1-Dichloroethane ug/L 50 58.2 116 69-151 1,1-Dichloroethene ug/L 50 56.5 113 64-158 1,2,3-Trichloropropane ug/L 50 41.7 83 78-133 1,2-Dibromo-3-chloropropane ug/L 50 43.2 86 58-124 1,2-Dibromoethane (EDB) ug/L 50 56.7 113 71-134 1,2-Dichlorobenzene ug/L 50 49.7 99 70-135 1,2-Dichloroethane ug/L 50 56.7 113 72-129 1,2-Dichloropropane ug/L 50 52.5 105 64-135 1,4-Dichlorobenzene ug/L 50 47.6 95 70-131 2-Butanone (MEK) ug/L 100 94.0 94 52-143 2-Hexanone ug/L 100 79.9 80 61-136 4-Methyl-2-pentanone (MIBK) ug/L 100 89.1 89 71-129 Acetone ug/L 100 119 119 48-224 Acrylonitrile ug/L 200 188 94 66-154 Benzene ug/L 50 57.8 116 68-132 Bromochloromethane ug/L 50 66.5 133 73-133 Bromodichloromethane ug/L 50 49.2 98 67-121 Bromoform ug/L 50 48.6 97 57-125 Bromomethane ug/L 50 44.5 89 35-156 Carbon disulfide ug/L 100 97.3 97 47-141 Carbon tetrachloride ug/L 50 61.6 123 66-122 L1 Chlorobenzene ug/L 50 48.5 97 71-126 Chloroethane ug/L 50 43.4 87 43-143 Chloroform ug/L 50 58.8 118 71-136 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 05/20/2019 05:10 PM without the written consent of Pace Analytical Services, LLC. Page 13 of 21 aceAnalytical -pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: Burke Co. Blanks EB&Kirksey Pace Project No.: 92428652 LABORATORY CONTROL SAMPLE: Parameter 128031 Units Spike LCS Conc. Result Chloromethane ug/L 50 cis-1,2-Dichloroethene ug/L 50 cis-1,3-Dichloropropene ug/L 50 Dibromochloromethane ug/L 50 Dibromomethane ug/L 50 Ethylbenzene ug/L 50 lodomethane ug/L 100 m&p-Xylene ug/L 100 Methylene Chloride ug/L 50 o-Xylene ug/L 50 Styrene ug/L 50 Tetrachloroethene ug/L 50 Toluene ug/L 50 trans-1,2-Dichloroethene ug/L 50 trans- 1,3-Dichloropropene ug/L 50 trans-1,4-Dichloro-2-butene ug/L 100 Trichloroethene ug/L 50 Trichlorofluoromethane ug/L 50 Vinyl acetate ug/L 50 Vinyl chloride ug/L 50 Xylene (Total) ug/L 150 1,2-Dichloroethane-d4 (S) %. 4-Bromofluorobenzene (S) %. Dibromofluoromethane (S) %. Toluene-d8 (S) %. LCS % Rec % Rec Limits 42.9 86 47-123 62.6 125 74-131 49.7 99 78-120 55.7 111 65-115 61.0 122 79-129 48.6 97 68-129 117 117 49-154 101 101 67-137 58.1 116 61-147 53.2 106 52-141 54.6 109 77-128 63.5 127 51-139 54.0 108 60-133 58.0 116 69-144 49.5 99 74-128 62.3 62 61-139 47.6 95 73-126 52.1 104 55-132 41.4 83 52-141 48.3 97 50-133 154 103 78-132 96 81-119 89 82-120 112 82-114 82 82-109 Qualifiers MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 128032 MS 92428710001 Spike Parameter Units Result Conc. MSD Spike Conc. 128033 MS Result MSD Result MS % Rec MSD % Rec % Rec Limits RPD Max RPD Qual 1,1,1,2-Tetrachloroethane ug/L ND 50 50 49.1 53.5 98 107 68-137 9 11 1,1,1-Trichloroethane ug/L ND 50 50 68.1 71.3 136 143 66-142 5 11 M1 1,1,2,2-Tetrachloroethane ug/L ND 50 50 43.9 47.2 88 94 39-171 7 13 1,1,2-Trichloroethane ug/L ND 50 50 55.3 59.2 111 118 73-136 7 12 1,1-Dichloroethane ug/L 0.68J 50 50 60.9 62.9 120 125 66-155 3 15 1,1-Dichloroethene ug/L ND 50 50 65.8 68.9 132 138 33-181 5 34 1,2,3-Trichloropropane ug/L ND 50 50 39.8 43.1 80 86 78-133 8 14 1,2-Dibromo-3- ug/L ND 50 50 46.3 48.5 93 97 58-124 5 15 chloropropane 1,2-Dibromoethane (EDB) ug/L ND 50 50 54.1 58.6 108 117 71-134 8 12 1,2-Dichlorobenzene ug/L 2.4 50 50 51.4 53.8 98 103 69-135 5 10 1,2-Dichloroethane ug/L ND 50 50 55.0 55.8 110 112 36-159 1 10 1,2-Dichloropropane ug/L ND 50 50 51.3 55.2 103 110 68-132 7 11 1,4-Dichlorobenzene ug/L 47.3 50 50 95.7 97.4 97 100 49-153 2 9 2-Butanone (MEK) ug/L 448 100 100 544 551 96 103 10-189 1 23 M3 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 05/20/2019 05:10 PM without the written consent of Pace Analytical Services, LLC. Page 14 of 21 aceAnalytical -pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: Burke Co. Blanks EB&Kirksey Pace Project No.: 92428652 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 128032 MS 92428710001 Spike Parameter Units Result Conc. MSD Spike Conc. 128033 MS Result MSD Result MS % Rec MSD % Rec % Rec Limits RPD Max RPD Qual 2-Hexanone ug/L 8.0 100 100 83.0 88.5 75 81 40-135 6 18 4-Methyl-2-pentanone ug/L 311 100 100 440 454 129 143 30-177 3 10 M3 (MIBK) Acetone ug/L 299 100 100 403 407 104 108 44-223 1 14 M3 Acrylonitrile ug/L ND 200 200 180 194 90 97 13-189 8 12 Benzene ug/L 10.4 50 50 69.4 72.2 118 124 66-139 4 10 Bromochloromethane ug/L ND 50 50 66.1 69.6 132 139 73-133 5 13 M1 Bromodichloromethane ug/L ND 50 50 47.8 51.1 96 102 57-120 7 13 Bromoform ug/L ND 50 50 46.1 50.3 92 101 48-128 9 13 Bromomethane ug/L ND 50 50 29.7 38.7 59 77 10-187 26 32 Carbon disulfide ug/L ND 100 100 113 120 113 120 47-141 6 322 Carbon tetrachloride ug/L ND 50 50 69.4 73.6 139 147 58-127 6 14 MO Chlorobenzene ug/L 26.6 50 50 73.1 77.6 93 102 63-137 6 10 Chloroethane ug/L ND 50 50 47.2 47.7 93 94 52-146 1 16 Chloroform ug/L ND 50 50 58.8 61.7 118 123 74-137 5 9 Chloromethane ug/L ND 50 50 45.7 47.1 91 94 41-127 3 10 cis-1,2-Dichloroethene ug/L ND 50 50 62.0 64.0 124 128 71-138 3 16 cis-1,3-Dichloropropene ug/L ND 50 50 45.4 49.0 91 98 32-145 8 12 Dibromochloromethane ug/L ND 50 50 51.5 55.4 103 111 52-116 7 13 Dibromomethane ug/L ND 50 50 57.6 62.1 115 124 79-129 7 14 Ethylbenzene ug/L 24.1 50 50 72.7 77.0 97 106 31-174 6 10 lodomethane ug/L ND 100 100 113 122 113 122 49-154 8 30 m&p-Xylene ug/L 48.5 100 100 150 159 102 111 27-179 6 10 Methylene Chloride ug/L ND 50 50 57.2 58.7 114 117 61-146 3 15 o-Xylene ug/L 7.3 50 50 59.5 63.1 104 111 52-141 6 65 Styrene ug/L ND 50 50 53.1 57.8 106 116 77-128 9 14 Tetrachloroethene ug/L ND 50 50 66.8 70.8 134 142 36-155 6 14 Toluene ug/L 4.8 50 50 59.2 63.5 109 117 52-146 7 11 trans-1,2-Dichloroethene ug/L ND 50 50 63.8 65.0 128 130 61-152 2 14 trans-1,3-Dichloropropene ug/L ND 50 50 45.2 48.8 90 98 37-146 8 12 trans-1,4-Dichloro-2-butene ug/L ND 100 100 52.8 65.6 53 66 61-139 22 12 M1,R1 Trichloroethene ug/L ND 50 50 48.1 52.2 96 104 61-141 8 12 Trichlorofluoromethane ug/L ND 50 50 67.1 71.4 134 143 51-141 6 13 M1 Vinyl acetate ug/L ND 50 50 65.1 32.4 130 65 52-141 67 14 R1 Vinyl chloride ug/L ND 50 50 56.9 59.9 113 119 22-156 5 26 Xylene (Total) ug/L 55.8 150 150 210 222 102 111 78-132 6 7 1,2-Dichloroethane-d4 (S) %. 98 97 81-119 4-Bromofluorobenzene (S) %. 88 86 82-120 Dibromofluoromethane (S) %. 109 111 82-114 Toluene-d8 (S) %. 82 83 82-109 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 05/20/2019 05:10 PM without the written consent of Pace Analytical Services, LLC. Page 15 of 21 aceAnalytical —pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: Burke Co. Blanks EB&Kirksey Pace Project No.: 92428652 QC Batch: 475719 Analysis Method: EPA 8260D Mod. QC Batch Method: EPA 8260D Mod. Analysis Description: 8260D MSV SIM Associated Lab Samples: 92428652001, 92428652002 METHOD BLANK: 2578023 Matrix: Water Associated Lab Samples: 92428652001, 92428652002 Blank Reporting Parameter Units Result Limit MDL Analyzed Qualifiers 1,4-Dioxane (p-Dioxane) ug/L ND 2.0 1.2 05/16/19 12:43 1,2-Dichloroethane-d4 (S) % 95 50-150 05/16/19 12:43 Toluene-d8 (S) % 106 50-150 05/16/19 12:43 LABORATORY CONTROL SAMPLE: 2578024 Spike LCS LCS % Rec Parameter Units Conc. Result % Rec Limits Qualifiers 1,4-Dioxane(p-Dioxane) ug/L 20 17.7 89 70-130 1,2-Dichloroethane-d4 (S) % 103 50-150 Toluene-d8(S) % 107 50-150 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2578025 2578026 MS MSD 92427335014 Spike Spike MS MSD MS MSD % Rec Max Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual 1,4-Dioxane(p-Dioxane) ug/L 8.2 20 20 26.0 30.0 89 109 50-150 14 30 1,2-Dichloroethane-d4 (S) % 104 107 50-150 30 Toluene-d8 (S) % 109 108 50-150 30 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 05/20/2019 05:10 PM without the written consent of Pace Analytical Services, LLC. Page 16 of 21 Pace Analytical Services, LLC ceAnalX cal ® 9800 Kiney Ave. Suite 100 Huntersville, NC 28078078 www.pacelabs.com (704)875-9092 QUALIFIERS Project: Burke Co. Blanks EB&Kirksey Pace Project No.: 92428652 DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL -Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean -Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA Method 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI -The NELAC Institute. LABORATORIES PASI-A Pace Analytical Services - Asheville PASI-C Pace Analytical Services - Charlotte PASI-GA Pace Analytical Services - Atlanta, GA ANALYTE QUALIFIERS L1 Analyte recovery in the laboratory control sample (LCS) was above QC limits. Results for this analyte in associated samples may be biased high. MO Matrix spike recovery and/or matrix spike duplicate recovery was outside laboratory control limits. M1 Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery. M3 Matrix spike recovery was outside laboratory control limits due to matrix interferences. R1 RPD value was outside control limits. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 05/20/2019 05:10 PM without the written consent of Pace Analytical Services, LLC. Page 17 of 21 aceAnalytical —pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA CROSS REFERENCE TABLE Project: Burke Co. Blanks EB&Kirksey Pace Project No.: 92428652 Analytical Lab ID Sample ID QC Batch Method QC Batch Analytical Method Batch 92428652001 Field Blank EPA 3010A 475606 EPA6010D 475865 92428652001 Field Blank EPA 3010A 475600 EPA6020B 475863 92428652001 Field Blank EPA 8260D 28443 92428652002 Trip Blank EPA 8260D 28443 92428652001 Field Blank EPA 8260D Mod. 475719 92428652002 Trip Blank EPA 8260D Mod. 475719 Date: 05/20/2019 05:10 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 18 of 21 Document Name: Document Revised: February 7, 2018 . ARalXlcal Sample Condition Upon Receipt(SCUR Page 1 of 2 Document No.: Issuing Authority: F-CAR-CS-033-Rev.06 Pace Carolinas Quality Office Laboratory receiving samples: Asheville ❑ Eden❑ Greenwood ❑ Huntersviile /❑� Raleigh❑ Mechanicsville❑ ConditionSample Client Name: W V # : 92428652 ReceiptUpon Project Courier:❑acx ds ❑[-]Client ❑Commercial Pe ❑Other: 92428652 Custody Seal Present? []Yes ONo Seals Intact? ❑Yes ❑No Date/Initials person Examining Contents: Packing Material: ❑Bubble Wrap dBubble Bags ❑None ❑ Other The►mometel 92T948 Type of Ice: J2 et ❑slue ,3IR Gun ID: Cooler Temp (°C): II Correction Factor: Add/Subtract (•C) d,() Cooler Temp Corrected (+C): 4 ) r , i USDA Regulated Soil (❑ N/A, water sample) Did samples origi ate in a quarantine zone within the United States: CA, NY, or SC (check maps)? I—IYPc X. Biological Tissue Frozen? []Yes[]No�]i N/A []None Temp should be above freezing to VC ❑Samples out of temp criteria. Samples on ice, cooling process has begun Did samples originate from a foreign source lintern�icnally, inrludin¢ Hawaii and Puerto Rlcol? f—IYes -PNo Comments/Discrepancy: Chain of Custody Present? ©des ❑No ❑N/A 1. Samples Arrived within Hold Time? Ves []No ❑N/A 2. Short Hold Time Analysis (02 hr.)? ❑Yes ❑9c, ❑N/A 3. Rush Turn Around Time Requested? []Yes ' No ❑N/A 4. Sufficient Volume? LJYes ❑No ❑N/A S. Correct Containers Used? �y s []No []N/A 6. -Pace Containers Used? Yes ❑No ❑N/A Containers Intact? Yes ❑No ❑N/A 7. Dissolved analysis: Samples Field Filtered? ❑Ye; ❑No EfN/A 8. Sample Labels Watch COC? Oyes ❑No ❑N/A 9. -Includes Date/Time/ID/Analysis Matrix: Headspace in VOA Vials (>5-6mm)? ❑Yes ji]1ID ❑N/A 10, Trip Blank Present? ErYes [:]No ❑N/A 11. Trip Blank Custody Seals Present? oes No []N/A COMMENTS/SAMPLE DISCREPANCY Field Data Required? Dyes ❑No Lot ID of split containers: CLIENT NOTIFICATION/RESOLUTION , ,fJ 4 ) (0 i6 i'J lYh %� S1L � Y� �lL5 d t? ri! J, t = � M-MMEMENEDON Project Manager SCURF Review: Date: Project Manager SRF Review: 1) ' �� Date: ! 73 1 Page 19 of 21 Document Name: Document Revised: February 7, 2018 o ��aceAnalytica! Sample Condition Upon Receipt(5CUR) Page 1 of 2 Document No.: Issuing Authority: F-CAR-CS-033-Rev.06 Pace Carolinas Quality Office *Check mark top half of box if pH and/or dechlorination is verified and within the acceptance range for preservation samples. Exceptions: VOA, Coliform, TOC, Oil and Grease, DRO/8015 {water) DOC, LLHg **Bottom half of box is to list number of bottle Project WO# ; 92428652 PM: NMS Due Date: 05/23/19 CLIENT: 92—Joyce Eng E Q - z a c a v a n rNi 6 m 2 W c c 7 V a a N := a m Z d `o. c V a o N a m vV °Ji a c " a ry ti a, oo G c O yr = V m y E N A d m v G D z L U N a o N M d to M t~6 d N u n. u N C a m ry a T 4 Z V @ a vE N uV 6 m a w a .0 o 0 u' V h v a d a E m U 4 V S m a C "v S l7 4 z a a c = 4 n E ¢ o N 7 l7 d C N = y E a m rY VI U' a C O Y y E 4 0 l7 d - Z z E C E C) N ran d 0 d 2 ... U 2 4 0 E q i 0 a Z 0 N i0 Z ¢ O > H WU' > - ? G C O ¢ 0 E G 7 l7 > = v a m O E 6 C7 0 Y m o yr a .3 v Y O > @ Q) = a i+ a N .@ > a ;� E ^1 •-r a rn Z V '- '^ Q. W .n J E N n 'n N iv = V a ., E N 0. m 2 N "' p, c p/ a -+ of ri 0 d - 'i c N H E N M ? !l n E d E t7 O 1N 1 1 j 3 4 5 6 7 B 9 10 11 12 pH Adjustment Log for Preserved Samples Sample 10 Type of Preservative pH upon receipt Date preservation adjusted Time preservation adjusted Amount of Preservative added Lot Note: Whenever there is a discrepancy affecting North Carolina compliance samples, a copy of this form will be sent to the North Carolina DEHNR Certification Office (i.e. Out of hold, incorrect preservative, out of temp, incorrect containers. Page 20 of 21 I.PaceAralyticar CHAIN -OF -CUSTODY 1 Analytical Request Document ,, The Chain -of -Custody is a LEGAL DOCUMENT. All relevant fields must be completed accurately. Section A Section 8 Section C Required Client Information: Required Project Information: Invoice Information: ?a @ l Of 1 Company: La Bella Associates Report To: Van Burbach Attention: Lecia Jones Address: 2211 West Meadowview Rd Copy To: Gretta Eller Company Name: La Bella Associates Greensboro, NC 27407 Address: 1604 Ownby Lane, Richmond, VA 2322 Re ulata A Email To: vbUrbach D Ceen ineerin .nom Purchase Order No. Pace Quote Reference. Phone: 336 323-0U92 Fax Client Project ID: Burke Co.BlankS EB & Kirksey Pace Project Manager: Nicole Gasiorowskl State! Locati Requested Due Date/TAT: 10 Da Default Container Order Number. Pace Profile #: 2327-5 North Caroli Re uested Analysis Filtered Y!N MATRIX CODE o U COLLECTED Preservatives r O D�r�xmra water Dw WaSer WT u O — V wane wale. wvu m SAMPLE ID Proa.n 5°'lvSaGd P SL D " START END O N H m O One Character per box. 0.1 wilm OIL wP w w a z q°oi o (A-Z, 0-9 r, -) arner OT o r a v a m $ample Ids must be unique Trssue is x 1tl a c o w chi LL m Q r� O = C L Q¢ a a a 'o a - N[TOATETIME DATE TIME? N x x x z z 2 O z z �. 1 Field Blank VVT G 5���j 3 �7 X X X 2 Trip Blank wTG 5/e f (Cal IJ/)41A rj X X 3 4 5 6 7 8 9 JDATE 10 11 12 ADDITIONAL COMMENTS RELINQUISHED BY I AFFILIATION DATE TIME ACCEPTED BY I AFFILIATION TIME MPLE CONDITIONS •T ilt � l(� 1 14 SAMPLER NAME AND SIGNATURE _ PRINT Name of SAMPLER: }� `` yy� v aV:S �JGtrvTC�fl � SrI�YJOr3y1, D d Z rn Y H ft�5C,1 } SIGNATURE — DATE Signed: S��J �.2{� i ua U w M o o £ z cu —y l l r K _ U U U) ... y// � '� ",;G aceAnalytical _pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 September 03, 2019 Mr. Van Burbach Joyce Engineering -Greensboro 2211 West Meadowview Rd Boone Bldg, Suite 101 Greensboro, NC 27407 RE: Project: Burke Co - East Burke Resample Pace Project No.: 92438585 Dear Mr. Burbach: Enclosed are the analytical results for sample(s) received by the laboratory on July 25, 2019. The results relate only to the samples included in this report. Results reported herein conform to the most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual, where applicable, unless otherwise noted in the body of the report. This revision was issued on 9/3/19 to remove tetrachloroethene from MW-2, and to report additional compounds for MW-3, per client request. If you have any questions concerning this report, please feel free to contact me. Sincerely, J,u 6=.-/1�/_M1 / Nicole Gasiorowski nicole.gasiorowski@pacelabs.com (704)875-9092 Project Manager Enclosures cc: Van Burbach, Joyce Engineering -NC Gretta Eller, LaBella Associates, D.P.C. Ashley Martin, Labella Associates Rochelle Mesubed, Joyce Engineering Miguel Vazquez, Joyce Engineering �pQ ACrfFO REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, 9e0 without the written consent of Pace Analytical Services, LLC. Page 1 of 14 acmnalytical www.pacelabs.com Pace Analytical Services, LLC 9800 KinceyAve. Suite 100 Huntersville, NC 28078 (704)875-9092 Project: Burke Co - East Burke Resample Pace Project No.: 92438585 Charlotte Certification IDs 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 Louisiana/NELAP Certification # LA170028 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 CERTIFICATIONS South Carolina Certification #: 99006001 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Virginia/VELAP Certification #: 460221 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 2 of 14 aceAnalytical —pacelabsxom Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 SAMPLE SUMMARY Project: Burke Co - East Burke Resample Pace Project No.: 92438585 Lab ID Sample ID Matrix Date Collected Date Received 92438585001 MW - 2 Water 07/23/19 12:50 07/25/19 13:07 92438585002 MW - 3 Water 07/24/19 15:57 07/25/19 13:07 92438585003 Trip Blank Water 07/23/19 09:30 07/25/19 13:07 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 3 of 14 aceAnalytical —pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 SAMPLE ANALYTE COUNT Project: Pace Project No.: Burke Co - East Burke Resample 92438585 Analytes Lab ID Sample ID Method Analysts Reported Laboratory 92438585001 MW - 2 EPA 8260D CL 4 PASI-C 92438585002 MW - 3 EPA 8260D CL 6 PASI-C 92438585003 Trip Blank EPA 8260D CL 5 PASI-C REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 4 of 14 aceAnalytical —pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 SUMMARY OF DETECTION Project: Burke Co - East Burke Resample Pace Project No.: 92438585 Lab Sample ID Client Sample ID Method Parameters Result Units Report Limit Analyzed Qualifiers 92438585001 MW - 2 EPA 8260D Benzene 0.95J ug/L 1.0 08/02/19 23:15 92438585002 MW - 3 EPA 8260D Benzene 0.63J ug/L 1.0 08/02/19 23:33 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 5 of 14 aceAnalytical —pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: Burke Co - East Burke Resample Pace Project No.: 92438585 Sample: MW - 2 Lab ID: 92438585001 Collected: 07/23/19 12:50 Received: 07/25/19 13:07 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 8260D MSV Low Level Landfill Analytical Method: EPA 8260D Benzene 0.95J ug/L 1.0 0.15 1 08/02/19 23:15 71-43-2 Surrogates 4-Bromofluorobenzene (S) 98 % 70-130 1 08/02/19 23:15 460-00-4 1,2-Dichloroethane-d4 (S) 83 % 70-130 1 08/02/19 23:15 17060-07-0 Toluene-d8 (S) 108 % 70-130 1 08/02/19 23:15 2037-26-5 Date: 09/03/2019 09:29 AM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 6 of 14 aceAnalytical —pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: Burke Co - East Burke Resample Pace Project No.: 92438585 Sample: MW - 3 Lab ID: 92438585002 Collected: 07/24/19 15:57 Received: 07/25/19 13:07 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 8260D MSV Low Level Landfill Analytical Method: EPA 8260D Benzene 0.63J ug/L 1.0 0.15 1 08/02/19 23:33 71-43-2 1,2-Dichloropropane ND ug/L 1.0 0.19 1 08/02/19 23:33 78-87-5 Tetrachloroethene ND ug/L 1.0 0.16 1 08/02/19 23:33 127-18-4 Surrogates 4-Bromofluorobenzene (S) 100 % 70-130 1 08/02/19 23:33 460-00-4 1,2-Dichloroethane-d4 (S) 85 % 70-130 1 08/02/19 23:33 17060-07-0 Toluene-d8 (S) 109 % 70-130 1 08/02/19 23:33 2037-26-5 Date: 09/03/2019 09:29 AM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 7 of 14 aceAnalytical —pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: Burke Co - East Burke Resample Pace Project No.: 92438585 Sample: Trip Blank Lab ID: 92438585003 Collected: 07/23/19 09:30 Received: 07/25/19 13:07 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 8260D MSV Low Level Landfill Analytical Method: EPA 8260D Benzene ND ug/L 1.0 0.15 1 08/02/19 22:05 71-43-2 Tetrachloroethene ND ug/L 1.0 0.16 1 08/02/19 22:05 127-18-4 Surrogates 4-Bromofluorobenzene (S) 95 % 70-130 1 08/02/19 22:05 460-00-4 1,2-Dichloroethane-d4 (S) 83 % 70-130 1 08/02/19 22:05 17060-07-0 Toluene-d8 (S) 108 % 70-130 1 08/02/19 22:05 2037-26-5 Date: 09/03/2019 09:29 AM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 8 of 14 aceAnalytical —pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: Burke Co - East Burke Resample Pace Project No.: 92438585 QC Batch: 490158 Analysis Method: EPA 8260D QC Batch Method: EPA 8260D Analysis Description: 8260D MSV Low Level Landfill Associated Lab Samples: 92438585001, 92438585002, 92438585003 METHOD BLANK: 2644586 Matrix: Water Associated Lab Samples: 92438585001, 92438585002, 92438585003 Blank Reporting Parameter Units Result Limit MDL Analyzed Qualifiers 1,2-Dichloropropane ug/L ND 1.0 0.19 08/02/19 17:23 Benzene ug/L ND 1.0 0.15 08/02/19 17:23 Tetrachloroethene ug/L ND 1.0 0.16 08/02/19 17:23 1,2-Dichloroethane-d4 (S) % 94 70-130 08/02/19 17:23 4-Bromofluorobenzene (S) % 100 70-130 08/02/19 17:23 Toluene-d8 (S) % 104 70-130 08/02/19 17:23 LABORATORY CONTROL SAMPLE: 2644587 Spike LCS LCS % Rec Parameter Units Conc. Result % Rec Limits Qualifiers 1,2-Dichloropropane ug/L 50 50.4 101 70-130 Benzene ug/L 50 50.7 101 70-130 Tetrachloroethene ug/L 50 48.2 96 69-130 1,2-Dichloroethane-d4 (S) % 104 70-130 4-Bromofluorobenzene (S) % 94 70-130 Toluene-d8 (S) % 96 70-130 MATRIX SPIKE SAMPLE: 2644589 92439759009 Spike MS MS % Rec Parameter Units Result Conc. Result % Rec Limits Qualifiers 1,2-Dichloropropane ug/L ND 20 21.2 106 70-140 Benzene ug/L ND 20 22.2 111 70-151 Tetrachloroethene ug/L ND 20 23.0 115 59-143 1,2-Dichloroethane-d4 (S) % 110 70-130 4-Bromofluorobenzene (S) % 99 70-130 Toluene-d8 (S) % 97 70-130 SAMPLE DUPLICATE: 2644588 92439759008 Dup Max Parameter Units Result Result RPD RPD Qualifiers 1,2-Dichloropropane ug/L ND ND 30 Benzene ug/L ND ND 30 Tetrachloroethene ug/L ND ND 30 1,2-Dichloroethane-d4 (S) % 80 94 4-Bromofluorobenzene (S) % 98 95 Toluene-d8 (S) % 106 104 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/03/2019 09:29 AM without the written consent of Pace Analytical Services, LLC. Page 9 of 14 aceAnalytical —pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALIFIERS Project: Burke Co - East Burke Resample Pace Project No.: 92438585 DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL -Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean -Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA Method 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI -The NELAC Institute. LABORATORIES PASI-C Pace Analytical Services - Charlotte REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/03/2019 09:29 AM without the written consent of Pace Analytical Services, LLC. Page 10 of 14 aceAnalytical —pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA CROSS REFERENCE TABLE Project: Burke Co - East Burke Resample Pace Project No.: 92438585 Lab ID Sample ID QC Batch Method QC Batch Analytical Method 92438585001 MW - 2 EPA 8260D 490158 92438585002 MW - 3 EPA 8260D 490158 92438585003 Trip Blank EPA 8260D 490158 Date: 09/03/2019 09:29 AM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Analytical Batch Page 11 of 14 o aceAnalytrcal Document Name: Sample Condition Upon Receipt(SCUR) Document Revised: February 7, 2018 Page 1 of 2 Document No,; F.CAr a_rc_naa.a Issuing Authority: Pace Carolinas Quality Office Laboratory receiving samples: Asheville ❑ Eden[ —] Greenwood❑ j Huntersville Raleigh[]Mechanicsville❑ W O# : 92438585 ClientName: on Receipt iri• ��'f�l IrI ,� Project „I Courier: ❑F •Ea ❑UPS ❑USPS ❑ Commercial Pace ❑Other: ❑Client 92438585 E 1 No Custody Seal Present? ❑Yes No 5eals Intact? []Yes Date/Init}als Person Examining Packing Material; []Bubble Wrap i ❑Bubble Bags []None ❑ Other Biological Tissuee F oxen? Dyes ❑No E]N/A Thermometer 92TD48 TYpe of Ise: Wet ❑Blue []None IR Gun ID: Cooler Temp (°C): Correction Factor: Add/Subtract ('C) 0• fl Tempshould be above freezing to 6°C Cooler Temp Corrected ('C): y ❑5amples out oftemp criteria. Samples on ice, cooling process water sample) has begun USDA Regulated Soil ([3-`N/A, Did samples on ate in a quarantine zone within the United Slates; CA, NY, or SC (check maps)? Did samples originate from a foreign source (intemat anally, including Hawaii and Puerto Rico)? [:]Ye-❑ ❑Yes Na Comm ents/Discrepancv : Chain of Custody Present? (Yes ❑No ❑N/A 1 1. Samples Arrived within Hold Time? [Dyes ❑No ❑N/A 2. Short Hold Time Ana lysls (<72 hr.)? Dyes DNNo ❑N/A 3. Rush Turn Around Time Requested? Dyes i ❑No C] N/A 4. Sufficient volume? ❑Yes [-]NO ❑N/A S. Correct Containers Used? i ❑%f ❑No ❑N/A 6. Pace Containers Used? ElYes ❑No ❑N/A Containers Intact? Yes []No N/A 7. Dissolved analysis: Samples Field Filtered? DYES, ❑No NIA 6. Sample Labels Match COC? es ❑No ❑N/A 9. -Includes Date/Time/ID/Analysis Matrix: W I Headspace in VOA Vials I>5-6mm)? a ❑No ❑N/A 10. Trip Blank Present? ClYes ❑No ❑N/A 11. Trip Blank Custody Seals Present? Yes ❑No ❑N/A COMMENTS/SAMPLE DISCREPANCY Field Data Required? ❑Yes [—]No CLIENT NOT Person contacted: Date/Time: Project Manager SCURF Review: Project Manager SRF Review: Lot ID of split containers: Date: Date: 1 (� Page 12 of 14 Document Name: Sample Condition Upon Rec pocument No.: Document Revised: February 7, 2018 Page 1 of 2 Issuing Authority: D— r arnlinns Quality Office *Check mark top half of box if pH and/or dechlorination Is Project t# verified and within the acceptance range for preservation samples. Exceptions: VOA, Coliform, TOC, Oil and Grease, ORO/801S (water). DOC, LLHS **13ottom half of box is to list number of bottle u ss Z z N N C v a v v 2 i-1 Z v 2 2 H 2 io a a Z gM M a -- m a rl a t? D d s = n z M v > > > _ " = Y z ry Z V V V Z) V V V V a .c aa a 19 a a. a a E a 1E E E E `w E E E v Ln O O t u, N ry ry 3 a0. d 0.m m 92 mm m tC3 4 5 fi 7 8 4 1D 11 12 WO#:92438585 PM: NMG Due Dale: 08/08/19 CLIENT: 92-Joyce Eng pH Adjustment Log for Preserved Samples Sample ID Type of Preservative pH upon receipt pate preservation adjusted Tim adjusted preservation Amount added Preservative Lot q rm will he to the North Carolina OEHNR Certification Office (i.e. Note: Whenever there is a discrepancy affecting North Carolina compliance samples, a copy of this fo Out of hold, incorrect preservative, out of temp, incorrect containers. Page 13 of 14 u Section A Required C W F- 1 2 3 4 5 8 7 8 9 10 11 ant Information: Labelfa Assoc 221 1 W t fvl a, NC 2 4407 336 323-009, is RatelTAT: 10 SAMPLE ID One ChWacter per box. (A-Z. 0-9 f , -) Sample Ids must be unique ADDITIONAL COMMENTS Section B Required Project Information: Report To: Van Burbach Uuya enI Protect ID: Burke Co. - Ea ContaiOrder Number: m a MATRIX CODE o COLLECTED ❑-king Water tiW a Water WT o U w;,,te worm Ww c Product P m SaWsdid SL Oil oL w c7 START Wien WP A,r AR w Other oT p > Tissue TS U I— x 1+ c q m DATE TIMI RELINOUISHEDBYIAFFILIATION DATE TIME Si /Lc4 lc� 7iz j NAME AND SIGNATURE Name of SAMPLER:-- I Boom MaNNE IMMEENNNEMEN IMMEMENEMENEW IMMENNEMENEEN IMMENNEEMEMES IMMEMENNOMENN CHAIN -OF -CUSTODY / Analytical Request Document °' tT The Chain -of -Custody is a LEGAL DOCUMENT. All relevant fields must be completed accurately. d Section C Invoice Information: Attention: Lecia Jones Page . of 1 company Name: LabNa Assoc. Address: 1604 Ownby Lane, Richmond, VA 23220 Q Regulatory Agency uote Reference: gHesaii le Project Manager: Nicole Gasiorowski Profile n' State / Location NC Preservatives N z m i F m _ N m c � L o N al = C c r x x x � o0 ACCEPTED BY I AFFILIATION DATE TIME SAMPLE CONDITIONS J a _ C N �y✓ _ > BATE Signed: / �j CL CHAIN -OF -CUSTODY / Analytical Request Document °' tT The Chain -of -Custody is a LEGAL DOCUMENT. All relevant fields must be completed accurately. d Section C Invoice Information: Attention: Lecia Jones Page . of 1 company Name: LabNa Assoc. Address: 1604 Ownby Lane, Richmond, VA 23220 Q Regulatory Agency uote Reference: gHesaii le Project Manager: Nicole Gasiorowski Profile n' State / Location NC Preservatives N z m i F m _ N m c � L o N al = C c r x x x � o0 ACCEPTED BY I AFFILIATION DATE TIME SAMPLE CONDITIONS J a _ C N �y✓ _ > BATE Signed: / �j CL DATE: 201 q ENGINEERING GROUND WATER SAMPLING LOG Project Name: & rye Co. — E&Sf R rje. Project No. /Task No.: 01g1g7J � 07- Well ID: Mw —1 Sampler(s):' 1 AUSSon / S, sl2%OAY3 Well Location: V. Well Diameter: Initial Depth to Water (DTW): Depth to Bottom (DTB): Water Column Thickness (WCT): Calculation for One Well Volume (WV): For 2" Well: WCT X 0.163 For 4" Well: WCT X 0.653 For THREE Well Volumes: WV X 3 Actual Amount Purged/Bailed: Purged with: Sampled with W inches feet J�D SS feet 3- ('0 feet [DTB-DTW] _ gallons �.9 gallons Z&.7 gallons 26 , 7 gallons Depth to Water before Sampling: feet Gallons Time Temp (°C) pH Cond. (µS/cm) Dis.02 mg/L ORP my Turb. (ntu) Initials 0�� 17.y 7,�g 100,E 3,3� Io3.9 1.8q SS %,1 09 j�, S,(�2 115-,'7 3, 17 1A,,9 7.'70 17.1 083(o 1 ,0 5-,5-V 17$. -7 153, S66 --5S 0&, 7 08 5D 7, J0q, o ►, 2 I . Z,l z SS Date of sample: (1'l j Before Sampling I om -7, 3 SE S& I p r f C) �. 2 ��- - 21 z sS Comments (weather conditions, odor, color, silt, etc.): Signature: Date: QA/QC Sign Off: Date: DATE: 5-61,WY9 AJu r Lc ENGINEER/NG GROUND WATER SAMPLING LOG Project Name: a-s k" Project No. /Task No.: 21 g1$71 tiase— 01 Well ID• Aw Sampler(s): S 5feG Well Location: &k'-'tJ 6 p- f Well Diameter: Initial Depth to Water (DTW): Depth to Bottom (DTB): Water Column Thickness (WCT) Calculation for One Well Volume (WV): For 2" Well: For 4" Well: WCT X 0.163 WCT X 0.653 For THREE Well Volumes: WV X 3 Actual Amount Purged/Bailed: Purged with: Sampled with Depth to Water before Sampling: inches ,9% 1(7 feet 7� CX� feet 51 feet [DTB-DTW] _ gallons gallons gallons 3Z `� gallons feet Gallons Time Temp (°C) pH Cond. (PS/cm) Dis.02 mg/L ORP my Turb. (ntu) Initials © °9z 16.3 S:4, GAS.6 %, >i 13Y / -3.93 7-Y 1o.11 615-1 /&, 5/ S: &q /5?4 7 2.6/ 0. i i7. C. T" v X. ( 1 a1s RP-3 , _7 �/3, y a.65- 79 2 I7 s 7K 34,Y INO y �.�� 239:9 q,67 7ff Date of sample: 54v Before Sampling Lo4lD l 7. y S. .2-3j 9 02 7 T/f Co�nts (weather conditions, odor, color, silt, etc.): Ike- Q1Signature: Date: 17D� QA/QC Sign Off• Date• DATE: 7J031zD1q LaBelLa GROUND WATER SAMPLING LOG Project Name: bvy-'b Co.-- A254,x_ Project No. /Task No.: Z) S )8 11`a�- 02 Well ID: -Z be--65A CLSampler(s): 5. L�1CY. lY1;F Well Location: 4 be�,rA uJQsiP ccIle&t'on fend Well Diameter: Initial Depth to Water (DTW): Depth to Bottom (DTB): Water Column Thickness (WCT): Calculation for One Well Volum� (WV): 2 inches 55 • $ feet 71, 0 5 feet 17. 0-7 feet [DTB-DTW] For 2" Well: WCT X 0.163 = — gallons For 4" Well: WCT X 0.653 = 11. gallons For THREE Well Volumes: WV X 3 = 3�• gallons Actual Amount Purged/Bailed:_gallons Purged with: Bailer Pump Other: Sampled with: �� Pump Other: Depth to Water before Sampling: 1 ' feet Gallons Time Temp (°C) pH Cond. (us/cm) Dis.02 mg/L ORP my Turb. (ntu) Initials H57 17Z (o,7q�1�3,0 Z, 55 S 5,25- SS I1,1 121�1 It0,9 5-, (d,-;' q 9a•0 ,52 1DT I q,-72 ZZ. Z ) Z35 .7 5,- S9 2$. t� Z, S 101. (0 , 01 �S 3S . 3 ) 2.rC) 3, 2.0 S& Date of sample: 71Z31)9 Before Sampling 17,5p cd, c! q5-q, ', I -Z09_� }` 20 Comments (weather conditions, odor, color, silt, etc.): f Signature:4!��& Date: W o) q • • • _ - • �1, . l I ' L 1 DATE:�� au r `G ENGINEERING GROUND WATER SAMPLING LOG Project Name: _bv/4e Q) vv- j&— Project No. /Task No.: ZIS►$'71 Phosc, OZ Well ID: NIW- 3 Sampler(s):- i L'J5'o0 Well Location: -?r- Well Diameter: Initial Depth to Water (DTW): Depth to Bottom (DTB): Water Column Thickness (WCT) Calculation for One Well Volume (WV): For 2" Well: For 4" Well: WCT X 0.163 WCT X 0.653 For THREE Well Volumes: WV X 3 Actual Amount Purged/Bailed: Purged with: Sampled with 2 inches - Z _feet 3Z , 50 feet Z3, Z 1 feet [DTB-DTW] gallons 6, Z- gallons gallons 5, (0 gallons Depth'to Water before Sampling: feet Gallons Time Temp (°C) pH Cond. (µS/cm) Dis.02 mg/L ORP my Turb. (ntu) Initials 1(p , D SS' 281, Z 1,36 y y 7 Z-F SS K, Z 113 1S- 5- 63 Z66. ! z, (e )70.9 11,1 S� 3C)•q i 5q 5-,&5 Zkn 337 le9,0 10,2 SS K )Z®q I.35 17&.0 5,, 6,3 TIk Date of sample: �57/(,/Iq Before Sampling 12 )( , $ 5 S $ 06&'s J, 35 17& , o I S & 3 -rj+ C— m. ments (weather conditions, odor, color, silt, etc.): we. I Ci"t VJQ5 00,rA V 01 `n, Ak 1 4- 70 S 6A S/ Z4 1 / 1 /�L DATE: �ZC'I q � La BeUa GROUND WATER SAMPLING LOG Project Name: Ey,4e 0D." I�L4 BUS Fes- Project No. /Task No.: 21915 71 �1'1 C)z Well ID: —3 C� S� Sampler(s): S. sk + Well Location: ivn—_ r000& Y lem Well Diameter: Initial Depth to Water (DTW): Depth to Bottom (DTB): Water Column Thickness (WCT): Calculation for One Well Volume (WV): For 2" Well: WCT X 0.163 = For 4" Well: WCT X 0.653 For THREE Well Volumes: WV X 3 Actual Amount Purged/Bailed: Purged with: Sampled wit[ Depth to Water before Sampling: nches q, 9 3 feet j52- S-- feet ZZ , --7 feet [DTB-DTW] feet Ilons gallons gallons gallons Gallons Time Temp (°C) pH Cond. (US/CM) Dis.02 mg/L ORP my Turb. (ntu) Initials )`Z� SZ(o SO`3 3,L}Z ZZ(o,2 lq, CC JS 1 �1 I S 3 .0 70 -7,33 5s Zq-q 155D . Z 3. T J 5'l SS-1 ! (o+ " A 7 0, l q7, 14,q1 jS Date of sample: Before Sampling GJ ,, �) "l�� �C' i47f is Comments (weather conditions, odor, color, silt, etc.): Signature: a,i/, Date: 7�21i/wig QA/QC Sign Off: k �n Q." Date: O1 DATE: 5AP/ ZO1 q &jLJ i `c ENGINEERING GROUND WATER SAMPLING LOG Project Name: 19vr6- Cv, -- Ls� gurlf,_ Project No. /Task No.: Z1$ 1$71 !' phase OZ Well ID: A �\�" i Sampler(s):'I_&, son 1 S, v l� bode WellLocation: LeA an 161cng19 Poll 4, 4rough WooAs Ckcfc5s 4f-eam Well Diameter: Initial Depth to Water (DTW): Depth to Bottom (DTB): Water Column Thickness (WCT): 2 inches 7 - g feet 7. 3 feet 3. 2 2 feet [DTB-DTW] Calculation for One Well Volume (WV): For 2" Well: WCT X 0.163 = 0,15 gallons For 4" Well: WCT X 0.653 = — gallons For THREE Well Volumes: WV X 3 = 1. � gallons Actual Amount Purged/Bailed: gallons Purged with: ailer Pump Other: Sampled with: ailer _ Pump Other: Depth to Water before Sampling: feet Gallons Time Temp (°C) pH Cond. (PS/cm) Dis.02 mg/L ORP my Turb. (ntu) Initials C� 133Z l�. &. 01 107, Z q, 25- )7S 3 11.0 15S O.S J233 fsSr 5,76 109.7 Z•73 17b.7 S1. o S, I.O ► Z3'� � ) S. 73 11 q, 3 3.33 (H9,1 11(o JS Date of sample: Before Sampling 73 )I$,l 3 Z$ I I�(p 1 11, S SS Comments (weather conditions, odor, color, silt, etc.): -Tilt- w eA-I L.-- t 5 70 `s -4- Aar+� vd y ort Signature: ,f Date•��/20Iq QA/QC Date: S DATE: 05/6/2019 &'u i `r ENGINEERING SURFACE WATER MONITORING LOG Project Name: Burke County- East Burke Project/Task No.: 2181871 / phase 02 Surface Point ID: SW-1 Sampler(s): T. Hudson / S. Slebodnik Location: Old sed. pond, up old rd. from MW-3 Field Parameters: Time of Sampling: 1135 pH: 6.26 Temperature: 16.5 (°C) Conductivity: 127.6 (µS/cm) Dissolved Oxygen: 5.90 (mg/L) ORP: 145.3 (mV) Turbidity: 15.2 (NTU) Comments/Sample Description (weather conditions, odor, color, silt, etc.): The weather was 70's and partlycudy on 5/6/2019. Signature: _ Date:ell" QA/QC Sign Off:_ ./Le�j Date: c Revised 5/9/19 DATE: 5/6/2019 &"u i a c E1\1GINEEl4/NG SURFACE WATER MONITORING LOG Project Name: Burke County- East Burke Project/Task No.: 2181871 / phase 02 Surface Point ID: SW-2 Sampler(s): T. Hudson / S. Slebodnik Location: downstream from MW-3 & AMW-1 Field Parameters: Time of Sampling: pH: Temperature: Conductivity: Dissolved Oxygen: ORP: Turbidity: 1240 6.12 16.6 (°C) 131.2 —(AS/cm) 6.32 (mg/L) 155.3 (mV) 14.4 (NTU) Comments/Sample Description (weather conditions, odor, color, silt, etc.): The weather was 70's and partly cloudy on 5/6/2019. Sketch of Sample Location (include flow direction, drainage pathways, etc.): QA/QC Sign Off: Date: Date: APPENDIX 2 Historical Data Table A2-1 Historical Groundwater Elevations Table A2-2 Historical Groundwater Constituents Table A2-3 Historical Surface Water Constituents Table A2-4 Historical Groundwater Field Parameters Table A2-5 Historical Surface Water Field Parameters TABLE A2-1: Historical Groundwater Elevations Well ID: MW-1 MW-2 MW-3 AMW-1 TOC Elevation: 1147.00 1096.50 1039.00 1021.00 Well Depth (Ft): 50.55 71.05 32.50 7.30 05/18/15 1108.36 1032.09 1030.10 1016.35 12/07/15 1108.30 1030.95 1028.55 1016.55 05/02/16 1109.15 1037.00 1026.50 1016.69 12/12/16 1108.05 1036.20 1026.85 1016.35 06/26/17 1108.15 1042.85 1026.00 1016.30 12/14/17 1107.54 1031.67 1028.00 1016.45 05/16/18 1108.44 1030.65 1028.14 1016.35 12/03/18 1107.91 1034.32 1028.61 1016.55 05/06/19 1110.05 1042.03 1029.71 1016.92 Notes: All elevations are in feet above mean sea level. Well depths are in feet belwo top of casing. TOC Elevations are estimated from best available data. Burke County -East Burke Permit 12-02 LaBella Associates TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks INORGANICS Arsenic 28-Apr-94 NR 1 ND 3.0 ND NI ND 2-May-00 NR 10 ND 15 J ND NI ND 8-Nov-00 NR 10 ND 18.0 ND NI ND 31-May-01 NR 10 ND 14 J ND NI ND 6-Nov-01 NR 10 ND ND ND NI ND 21-May-02 NR 10 13.0 10 ND NI ND 13-Nov-02 NR 10 ND ND ND NI ND 13-May-03 NR 10 24.0 15.0 ND NI ND 18-Nov-03 NR 10 ND 27.0 ND ND ND 4-May-04 NR 10 ND 23.0 ND ND ND 9-Nov-04 NR 10 ND 27.0 ND ND ND 25-May-05 NR 10 ND 22.0 ND ND ND 1-Nov-05 NR 10 ND 31.0 ND ND ND 23-May-06 NR 10 ND 32.8 ND ND ND 1-Nov-06 NR 10 ND 31.5 ND ND ND 29-May-07 NR 10 4.4 J 21.8 ND ND ND NC 2L = 50 pg/L (10/23/07) 27-Nov-07 NR 10 8.2 J 40.1 5.4 J ND ND 27-May-08 2.7 10.0 7.8 J 16.8 ND ND ND 4-Nov-08 2.7 10.0 8.4 B 18.5 B 4.2 B ND 4.8 J 1-Jun-09 2.7 10.0 33.5 Dry 5.1 J ND ND 19-Nov-09 2.7 10.0 19.1 16.3 ND ND ND NC 2L = 10 pg/L (01/01/10) 14-Jun-10 2.7 10.0 3.0 J 26.5 3.5 J ND ND 29-Nov-10 2.7 10.0 4.0 J 30.7 3.8 J ND ND 31-May-11 2.7 10.0 3.1 J 34.4 5.5 J ND ND 19-Dec-11 5.0 10.0 6.5 J 30.7 ND ND ND 30-May-12 5.0 10.0 5.3 J 22.0 ND ND ND 3-Dec-12 5.0 10.0 8.2 J 35.8 9.8 J ND ND 10-Jun-13 5.0 10.0 ND 14.0 ND ND ND 28-Oct-13 5.0 10.0 ND 34.0 ND ND ND 5-May-14 5.0 10.0 ND 32.7 ND ND ND 20-Oct-14 5.0 10.0 ND 39.7 ND ND ND 18-May-15 2.5 10.0 ND 30.4 3.5 J 3.2 J ND 7-Dec-15 2.5 10.0 9.9 J 28.4 4.3 J ND ND 2-May-16 2.5 10.0 ND 24.1 6.5 J ND ND 12-Dec-16 2.5 10.0 ND 26.3 5.4 J 3.8 J ND 26-Jun-17 5.0 10.0 6.1 J 35.4 8.8 J 5.1 J ND 14-Dec-17 5.0 10.0 7.1 J 25.5 ND ND ND 14-May-18 5.0 10.0 10.8 24.4 8.9 J ND ND 6-May-19 5.0 10.0 5 J 20.4 ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 1 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks Barium 28-Apr-94 NR 100 ND ND ND NI ND 2-May-00 NR 500 ND ND ND NI ND 8-Nov-00 NR 500 ND ND ND NI ND 31-May-01 NR 500 ND ND ND NI ND 6-Nov-01 NR 500 ND ND ND NI ND 21-May-02 NR 500 ND ND ND NI ND 13-Nov-02 NR 500 ND ND ND NI ND 13-May-03 NR 500 ND ND ND NI ND 18-Nov-03 NR 500 ND ND ND ND ND 4-May-04 NR 500 ND ND ND ND ND 9-Nov-04 NR 500 ND ND ND ND ND 25-May-05 NR 500 ND ND ND ND ND 1-Nov-05 NR 500 ND ND ND ND ND 23-May-06 NR 500 ND ND ND ND ND 1-Nov-06 NR 10 ND ND ND ND ND 29-May-07 NR 100 74.6 J 70.6 J 109 60.4 J ND NC 2L = 2,000 pg/L (10/23/07) 27-Nov-07 NR 100 71.5 J 63.9 J 110 45.5 J 0.30 J 27-May-08 0.2 100 65.6 J 64.0 J 92.4 J 35.6 J 0.41 J 4-Nov-08 0.20 100 57.3 J 60.9 J 93.0 J 34.1 B 10.5 J 1-Jun-09 0.20 100 62.0 B Dry 81.8 J 32.3 B 15.2 J 19-Nov-09 0.20 100 57.7 B 149 90.5 B 30.1 B 19.8 J NC 2L = 700 pg/L (01/01/10) 14-Jun-10 0.20 100 66.3 J 85.9 J 101 60.2 J 0.58 J 29-Nov-10 0.20 100 67.2 J 76.7 J 111 46.6 J ND 31-May-11 0.20 100 67.0 J 66.8 J 96.2 J 41.7 J ND 19-Dec-11 5.0 100 86.3 J 81.3 J 103 39.5 J ND 30-May-12 5.0 100 70.7 J 61.2 J 92.7 J 39.4 J ND 3-Dec-12 5.0 100 65.2 J 54.2 J 111 27.7 J ND 10-Jun-13 5.0 100 69.8 J 125 93.9 J 25.6 B 13.7 J 28-Oct-13 5.0 100 66.4 J 101 71.5 J 45.5 J ND 5-May-14 5.0 100 65.3 J 68.9 J 110 42.2 J ND 20-Oct-14 5.0 100 62.1 J 56.5 J 116 47.6 J ND 18-May-15 2.5 100 65.0 J 49.7 J 98.6 J 43.4 J ND 7-Dec-15 2.5 100 74.5 J 63.0 J 114 38.7 J ND 2-May-16 2.5 100 62.8 J 80.4 J 111 45.0 J ND 12-Dec-16 2.5 100 65.3 J 48.4 J 119 47.8 J ND 26-Jun-17 2.5 100 65.5 J 62.5 J 136 53.4 J 2.5 J 14-Dec-17 2.5 100 60.2 J 52.0 J 120 37.6 J ND 14-May-18 2.5 100 63.3 J 49.2 J 124 42.6 J ND 6-May-19 2.5 5 56.3 40.6 113 50.8 ND Burke County -East Burke La Bella Associates Permit No. 12-02 2 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks Beryllium 19-Oct-99 NR 2 ND ND ND NI ND 2-May-00 NR 2 ND ND ND NI ND 8-Nov-00 NR 2 ND ND ND NI NA 31-May-01 NR 2 ND ND ND NI ND 6-Nov-01 NR 2 ND ND ND NI ND 21-May-02 NR 2 ND ND ND NI ND 13-Nov-02 NR 2 2.3 3.4 3.7 NI ND 13-May-03 NR 2 ND ND ND NI ND 18-Nov-03 NR 2 ND ND ND ND ND 4-May-04 NR 2 ND ND ND ND ND 9-Nov-04 NR 2 ND ND ND ND ND 25-May-05 NR 2 ND ND ND ND ND 1-Nov-05 NR 2 ND ND ND ND ND 23-May-06 NR 2 ND ND ND ND ND 1-Nov-06 NR 10 ND ND ND ND ND 29-May-07 NR 1 ND ND ND ND ND GWPS = 4 pg/L (10/23/07) 27-Nov-07 NR 1 ND ND ND ND ND 27-May-08 0.1 1.0 0.11 J 0.11 J 0.26 J ND ND 4-Nov-08 0.10 1.0 0.12 J 0.29 J 0.24 J ND ND 1-Jun-09 0.10 1.0 ND Dry 0.17 J ND ND 19-Nov-09 0.10 1.0 ND 0.41 J 0.22 J ND ND 14-Jun-10 0.10 1.0 ND 0.18 J 0.15 J ND ND 29-Nov-10 0.10 1.0 ND ND ND ND ND 31-May-11 0.10 1.0 0.27 J 0.18 J 0.25 J ND ND 19-Dec-11 1.0 1.0 ND ND ND ND ND 30-May-12 1.0 1.0 ND ND ND ND ND 3-Dec-12 1.0 1.0 ND ND ND ND ND 10-Jun-13 1.0 1.0 ND ND ND ND ND 28-Oct-13 1.0 1.0 ND ND ND ND ND 5-May-14 1.0 1.0 ND ND ND ND ND 20-Oct-14 1.0 1.0 ND ND ND ND ND 18-May-15 0.5 1.0 ND ND ND ND ND 7-Dec-15 0.5 1.0 ND 0.54 J ND ND ND 2-May-16 0.5 1.0 ND ND ND ND ND 12-Dec-16 0.5 1.0 ND ND ND ND ND 26-Jun-17 0.5 1.0 ND 0.5 J 0.57 J ND ND 14-Dec-17 0.5 1.0 ND ND ND ND ND 14-May-18 0.5 1.0 ND ND ND ND ND 6-May-19 0.5 1.0 ND ND ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 3 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks Cadmium 28-Apr-94 NR 1 18.0 ND ND NI ND 2-May-00 NR 1 ND 1.0 J ND NI ND 8-Nov-00 NR 1 ND 2.0 ND NI ND 31-May-01 NR 1 ND 3.0 J 1.0 J NI ND 6-Nov-01 NR 1 ND 1.4 ND NI ND 21-May-02 NR 1 1.1 1.6 1.7 NI ND 13-Nov-02 NR 1 1.4 2.3 2.4 NI ND 13-May-03 NR 1 1.4 1.4 1.2 NI ND 18-Nov-03 NR 1 ND ND 1.7 ND ND 4-May-04 NR 1 ND ND 1.8 ND ND 9-Nov-04 NR 1 ND 2.6 1.6 ND ND 25-May-05 NR 1 ND ND ND ND ND 1-Nov-05 NR 1 ND ND ND ND ND 23-May-06 NR 1 ND ND ND ND ND 1-Nov-06 NR 10 ND ND ND ND ND 29-May-07 NR 1 ND ND ND ND ND NC 2L = 1.75 pg/L (10/23/07) 27-Nov-07 NR 1 ND ND ND ND ND 27-May-08 0.5 1.0 ND ND ND ND ND 4-Nov-08 0.50 1.0 ND ND ND ND ND 1-Jun-09 0.50 1.0 ND Dry ND ND ND 19-Nov-09 0.50 1.0 ND ND ND ND ND NC 2L = 2 pg/L (01/01/10) 14-Jun-10 0.50 1.0 ND ND ND ND ND 29-Nov-10 0.50 1.0 ND ND ND ND ND 31-May-11 0.50 1.0 ND 0.55 J ND ND ND 19-Dec-11 1.0 1.0 ND ND ND ND ND 30-May-12 1.0 1.0 ND ND ND ND ND 3-Dec-12 1.0 1.0 ND ND ND ND ND 10-Jun-13 1.0 1.0 ND ND ND ND ND 28-Oct-13 1.0 1.0 ND ND ND ND ND 5-May-14 1.0 1.0 ND ND ND ND ND 20-Oct-14 1.0 1.0 ND ND ND ND ND 18-May-15 0.5 1.0 ND ND ND ND ND 7-Dec-15 0.5 1.0 ND ND ND ND ND 2-May-16 0.5 1.0 ND ND ND ND ND 12-Dec-16 0.5 1.0 ND ND ND ND ND 26-Jun-17 0.5 1.0 ND ND ND ND ND 14-Dec-17 0.5 1.0 ND ND ND ND ND 14-May-18 0.5 1.0 ND ND ND ND ND 6-May-19 0.5 1.0 ND ND ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 4 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks Chromium 28-Apr-94 NR 20 ND ND ND NI ND 2-May-00 NR 10 ND ND ND NI ND 8-Nov-00 NR 10 ND ND ND NI ND 31-May-01 NR 10 ND ND ND NI ND 6-Nov-01 NR 10 ND ND ND NI ND 21-May-02 NR 10 ND ND ND NI ND 13-Nov-02 NR 10 ND ND ND NI ND 13-May-03 NR 10 ND ND ND NI ND 18-Nov-03 NR 10 ND ND ND ND ND 4-May-04 NR 10 ND ND ND ND ND 9-Nov-04 NR 10 ND ND ND ND ND 25-May-05 NR 10 ND ND ND ND ND 1-Nov-05 NR 10 ND ND ND ND ND 23-May-06 NR 10 ND ND ND ND ND 1-Nov-06 NR 10 ND ND ND ND ND 29-May-07 NR 10 ND ND ND ND ND NC 2L = 50 pg/L (10/23/07) 27-Nov-07 NR 10 ND ND ND ND ND 27-May-08 0.4 10.0 ND 0.66 B ND 1.0 B 0.85 J 4-Nov-08 0.40 10.0 0.68 J 1.4 J ND 1.4 J ND 1-Jun-09 0.40 10.0 ND Dry ND 1.3 J ND 19-Nov-09 0.40 10.0 ND 6.3 J ND ND 1.1 J NC 2L = 10 pg/L (01/01/10) 14-Jun-10 0.40 10.0 0.97 J 1.3 J ND 2.5 J ND 29-Nov-10 0.40 10.0 1.7 J ND ND 1.0 J ND 31-May-11 0.40 10.0 2.3 B 1.4 B 6.2 J 1.8 B 0.73 J 19-Dec-11 5.00 10.0 11.5 5.3 J ND 7.7 J ND 30-May-12 5.00 10.0 ND ND ND 7.9 J ND 3-Dec-12 5.00 10.0 ND ND ND ND ND 10-Jun-13 5.0 10.0 ND ND ND ND ND 28-Oct-13 5.0 10.0 ND ND ND ND ND 5-May-14 5.0 10.0 ND ND ND ND ND 20-Oct-14 5.0 10.0 ND ND ND ND ND 18-May-15 2.5 10.0 ND ND ND ND ND 7-Dec-15 2.5 10.0 3.8 J 9.5 J ND ND ND 2-May-16 2.5 10.0 2.5 J ND ND ND ND 12-Dec-16 2.5 10.0 ND ND ND 3 J ND 26-Jun-17 2.5 10.0 ND 3.6 J ND ND ND 14-Dec-17 2.5 10.0 ND ND ND 3.9 J ND 14-May-18 2.5 10.0 ND ND ND ND ND 6-May-19 2.5 5.0 ND ND ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 5 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks Cobalt 28-Apr-94 NR 20 ND ND ND NI ND 2-May-00 NR 10 ND 54.0 ND NI ND 8-Nov-00 NR 10 ND 40.0 26.0 NI ND 31-May-01 NR 10 44.0 27.0 40.0 NI ND 6-Nov-01 NR 10 ND 22.0 41.0 NI ND 21-May-02 NR 10 18.0 19.0 51.0 NI NA 13-Nov-02 NR 10 10.0 19.0 48.0 NI ND 13-May-03 NR 10 67.0 44.0 47.0 NI ND 18-Nov-03 NR 10 29.0 120 45.0 ND ND 4-May-04 NR 10 21.0 110 35.0 ND ND 9-Nov-04 NR 10 22.0 110 36.0 ND ND 25-May-05 NR 10 23.0 120 32.0 ND ND 1-Nov-05 NR 10 17.0 120 34.0 ND ND 23-May-06 NR 10 14.6 116 31.3 ND ND 6-Nov-06 NR 10 14.8 104 32.0 ND ND 29-May-07 NR 10 17.3 79.0 30.1 2.9 J ND GWPS = 70 pg/L (10/23/07) 27-Nov-07 NR 10 11.6 84.4 32.2 3.0 J ND 27-May-08 0.6 10.0 8.9 J 8.1 J 16.5 ND ND 4-Nov-08 0.6 10.0 15.5 B 20.5 26.1 4.5 B 3.5 J 1-Jun-09 0.60 10.0 36.1 Dry 29.8 6.0 B 3.3 J 19-Nov-09 0.60 10.0 19.6 39.8 23.5 1.4 J ND 14-Jun-10 0.60 10.0 20.1 160 31.1 4.0 J ND GWPS = 1 pg/L (10/1/10) 29-Nov-10 0.60 10.0 10.2 156 37.7 5.4 J ND 31-May-11 0.60 10.0 12.2 111 27.1 ND ND 19-Dec-11 5.0 10.0 14.7 75.7 24.8 ND ND 30-May-12 5.0 10.0 23.5 78.4 26.2 ND ND 3-Dec-12 5.0 10.0 27.5 124 34.9 ND ND 10-Jun-13 5.0 10.0 19.5 58.9 29.8 ND ND 28-Oct-13 5.0 10.0 14.6 178 14.0 6.6 J ND 5-May-14 5.0 10.0 9.7 J 115 24.8 ND ND 20-Oct-14 5.0 10.0 8.6 J 144 25.3 ND ND 18-May-15 2.5 10.0 10.3 95.3 23.5 ND ND 7-Dec-15 2.5 10.0 16.3 88.6 26.1 ND ND 2-May-16 2.5 10.0 10.4 128 25.6 ND ND 12-Dec-16 2.5 10.0 9.3 J 94.0 24.1 ND ND 26-Jun-17 2.5 10.0 13.9 110 26.3 ND ND 14-Dec-17 2.5 10.0 15.8 102 24.3 ND ND 14-May-18 2.5 10.0 17.9 84.7 21.0 ND ND 6-May-19 2.5 5.0 10.6 74.7 27.2 ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 6 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks Copper 28-Apr-94 NR 10 ND ND ND NI ND 2-May-00 NR 200 ND ND ND NI ND 8-Nov-00 NR 200 ND ND ND NI ND 31-May-01 NR 200 ND ND ND NI ND 6-Nov-01 NR 200 ND ND ND NI ND 21-May-02 NR 200 ND ND ND NI ND 13-Nov-02 NR 200 ND ND ND NI ND 13-May-03 NR 200 ND ND ND NI ND 18-Nov-03 NR 200 ND ND ND ND ND 4-May-04 NR 200 ND ND ND ND ND 9-Nov-04 NR 200 ND ND ND ND ND 25-May-05 NR 200 ND ND ND ND ND 1-Nov-05 NR 200 ND ND ND ND ND 23-May-06 NR 200 ND ND ND ND ND 1-Nov-06 NR 10 ND ND ND ND ND 29-May-07 NR 10 ND ND ND ND ND NC 2L = 1,000 pg/L (10/23/07) 27-Nov-07 NR 10 ND ND ND ND ND 27-May-08 0.3 10.0 ND 3.0 J ND ND ND 4-Nov-08 0.30 10.0 ND 2.2 B ND ND 0.94 J 1-Jun-09 0.30 10.0 0.36 J Dry ND ND ND 19-Nov-09 0.30 10.0 0.31 J 3.9 J ND ND ND 14-Jun-10 0.30 10.0 0.99 B 6.1 B ND ND 3.4 J 29-Nov-10 0.30 10.0 0.80 J 2.9 J ND ND ND 31-May-11 0.30 10.0 ND 0.63 J ND ND ND 19-Dec-11 5.0 10.0 5.2 J ND ND ND ND 30-May-12 5.0 10.0 ND ND ND ND ND 3-Dec-12 5.0 10.0 ND ND ND ND ND 10-Jun-13 5.0 10.0 ND ND ND ND 10.8 28-Oct-13 5.0 10.0 ND 11 ND ND ND 5-May-14 5.0 10.0 ND ND ND ND ND 20-Oct-14 5.0 10.0 ND ND ND ND ND 18-May-15 2.5 10.0 ND ND ND ND ND 7-Dec-15 2.5 10.0 ND 8.5 J ND ND ND 2-May-16 2.5 10.0 ND 4.6 J ND ND ND 12-Dec-16 2.5 10.0 ND ND ND ND ND 26-Jun-17 2.5 10.0 ND ND ND ND ND 14-Dec-17 2.5 10.0 2.9 J ND ND ND ND 14-May-18 2.5 10.0 ND 3.0 J ND ND ND 6-May-19 2.5 5.0 ND 3.2 J ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 7 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks Lead 28-Apr-94 NR 1 21.0 3.0 4.0 NI ND 2-May-00 NR 10 ND ND ND NI ND 8-Nov-00 NR 10 ND ND ND NI ND 31-May-01 NR 10 ND ND ND NI ND 6-Nov-01 NR 10 ND ND ND NI ND 21-May-02 NR 10 ND ND ND NI ND 13-Nov-02 NR 10 ND 10.0 ND NI ND 13-May-03 NR 10 ND ND ND NI ND 18-Nov-03 NR 10 ND ND ND ND ND 4-May-04 NR 10 ND ND ND ND ND 9-Nov-04 NR 10 ND ND ND ND ND 25-May-05 NR 10 ND ND ND ND ND 1-Nov-05 NR 10 ND ND ND ND ND 23-May-06 NR 10 ND ND ND ND ND 1-Nov-06 NR 10 ND ND ND ND ND 29-May-07 NR 10 ND 2.5 B 6.9 B 3.9 B 6.1 J NC 2L = 15 pg/L (10/23/07) 27-Nov-07 NR 10 ND ND ND ND ND 27-May-08 4 10.0 ND ND ND ND ND 4-Nov-08 4.0 10.0 ND ND ND ND ND 1-Jun-09 4.0 10.0 ND Dry ND ND ND 19-Nov-09 4.0 10.0 ND ND ND ND ND 14-Jun-10 4.0 10.0 ND ND ND ND ND 29-Nov-10 4.0 10.0 ND ND ND ND ND 31-May-11 4.0 10.0 ND ND ND ND ND 19-Dec-11 5.0 10.0 6.2 J ND ND ND ND 30-May-12 5.0 10.0 ND ND ND ND ND 3-Dec-12 5.0 10.0 ND ND ND ND ND 10-Jun-13 5.0 10.0 ND ND ND ND ND 28-Oct-13 5.0 10.0 ND ND ND ND ND 5-May-14 5.0 10.0 ND ND ND ND ND 20-Oct-14 5.0 10.0 ND ND ND ND ND 18-May-15 2.5 10.0 ND ND ND ND ND 7-Dec-15 2.5 10.0 ND 6.6 J ND ND ND 2-May-16 2.5 10.0 ND ND ND ND ND 12-Dec-16 2.5 10.0 ND ND ND ND ND 26-Jun-17 2.5 10.0 ND 3.0 J ND ND ND 14-Dec-17 2.5 10.0 ND ND ND ND ND 14-May-18 2.5 10.0 ND ND ND ND ND 6-May-19 2.5 5.0 ND ND ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 8 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks Nickel 28-Apr-94 NR 50 ND ND ND NI ND 2-May-00 NR 50 ND ND ND NI ND 8-Nov-00 NR 50 ND ND ND NI ND 31-May-01 NR 50 ND ND ND NI ND 6-Nov-01 NR 50 ND ND ND NI ND 21-May-02 NR 50 60.0 ND ND NI ND 13-Nov-02 NR 50 ND ND ND NI ND 13-May-03 NR 50 ND ND ND NI ND 18-Nov-03 NR 50 ND 110 ND ND ND 4-May-04 NR 50 ND 99 ND ND ND 9-Nov-04 NR 50 ND 110 ND ND ND 25-May-05 NR 50 ND 100 ND ND ND 1-Nov-05 NR 50 ND 110 ND ND ND 23-May-06 NR 50 ND 103 ND ND ND 6-Nov-06 NR 50 ND 92.6 ND ND ND 29-May-07 NR 50 11.5 J 78.3 7.7 J ND ND NC 2L = 100 pg/L (10/23/07) 27-Nov-07 NR 50 7.7 J 66.4 7.2 J ND ND 27-May-08 1.7 50.0 12.1 J 24.3 J 7.4 J ND ND 4-Nov-08 1.7 50.0 16.5 J 19.2 J 9.1 B 2.2 B 2.2 J 1-Jun-09 1.7 50.0 14.9 J Dry 6.1 J ND ND 19-Nov-09 1.7 50.0 13.2 J 39.9 J 7.7 B ND 2.2 J 14-Jun-10 1.7 50.0 8.6 J 157 6.3 J ND ND 29-Nov-10 1.7 50.0 7.3 J 133 7.2 J ND ND 31-May-11 1.7 50.0 9.1 B 116 9.6 B ND 2.3 J 19-Dec-11 5.0 50.0 10.9 J 85.8 6.8 J ND ND 30-May-12 5.0 50.0 9.9 J 57.4 5.8 J ND ND 3-Dec-12 5.0 50.0 8.0 J 63.3 6.7 J ND ND 10-Jun-13 5.0 50.0 8.1 J 40.9 J 6.5 J ND ND 28-Oct-13 5.0 50.0 ND 161 ND ND ND 5-May-14 5.0 50.0 ND 124 6.8 J ND ND 20-Oct-14 5.0 50.0 ND 132 7.5 J ND ND 18-May-15 2.5 50.0 5.1 J 88.2 7.9 J ND ND 7-Dec-15 2.5 50.0 8.8 J 75.2 8.9 J ND ND 2-May-16 2.5 50.0 5.6 J 122 8.4 J ND ND 12-Dec-16 2.5 50.0 4.3 J 92.5 8.5 J ND ND 26-Jun-17 2.5 50.0 6.0 J 98.8 8.2 J ND ND 14-Dec-17 2.5 50.0 8.1 J 84.0 9.4 J ND ND 14-May-18 2.5 50.0 7.2 J 64.3 6.2 J ND ND 6-May-19 2.5 5.0 5.5 62.0 9.7 ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 9 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks Selenium 19-Oct-99 NR 20 ND ND ND NI NA 2-May-00 NR 20 ND ND ND NI ND 8-Nov-00 NR 20 ND ND ND NI NA 31-May-01 NR 20 ND ND ND NI ND 6-Nov-01 NR 20 ND ND ND NI ND 21-May-02 NR 20 ND ND ND NI ND 13-Nov-02 NR 20 ND ND ND NI ND 1-Apr-03 NR 20 NA NA NA ND NA 13-May-03 NR 20 ND ND ND NA ND 18-Nov-03 NR 20 ND ND ND ND ND 4-May-04 NR 20 ND ND ND ND ND 9-Nov-04 NR 20 ND ND ND ND ND 25-May-05 NR 20 ND ND ND ND ND 1-Nov-05 NR 20 ND ND ND ND ND 29-May-07 NR 10 ND ND ND ND ND NC 2L = 50 pg/L (10/23/07) 27-Nov-07 NR 10 ND ND ND ND 2.4 J 27-May-08 3.8 10.0 ND ND ND ND ND 4-Nov-08 3.8 10.0 ND 7.2 B 5.7 B ND 4.2 J 1-Jun-09 3.8 10.0 ND Dry 5.0 J ND ND 19-Nov-09 3.8 10.0 ND ND ND ND ND NC 2L = 20 pg/L (01/01/10) 14-Jun-10 3.8 10.0 ND ND ND ND ND 29-Nov-10 3.8 10.0 ND ND ND ND ND 31-May-11 3.8 10.0 ND ND ND ND ND 19-Dec-11 10.0 10.0 ND ND ND ND ND 30-May-12 10.0 10.0 ND ND ND ND ND 3-Dec-12 10.0 10.0 ND ND ND ND ND 10-Jun-13 10.0 10.0 ND ND ND ND ND 28-Oct-13 10.0 10.0 ND ND ND ND ND 5-May-14 10.0 10.0 ND ND ND ND ND 20-Oct-14 10.0 10.0 ND ND ND ND ND 18-May-15 5.0 10.0 ND ND ND ND ND 7-Dec-15 5.0 10.0 ND ND ND ND ND 2-May-16 5.0 10.0 ND ND ND ND ND 12-Dec-16 5.0 10.0 ND ND ND ND ND 26-Jun-17 5.0 10.0 ND ND ND ND ND 14-Dec-17 5.0 10.0 ND ND ND ND ND 14-May-18 5.0 10.0 ND ND ND ND ND 6-May-19 5.0 10.0 ND ND ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 10 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks Silver 19-Oct-99 NR 10 ND ND ND NI ND 2-May-00 NR 10 ND ND ND NI ND 8-Nov-00 NR 10 ND ND ND NI NA 31-May-01 NR 10 ND ND ND NI ND 6-Nov-01 NR 10 ND ND ND NI ND 21-May-02 NR 10 ND ND ND NI 15.0 13-Nov-02 NR 10 ND ND ND NI ND 13-May-03 NR 10 ND ND ND NI ND 18-Nov-03 NR 10 ND ND ND ND ND 4-May-04 NR 10 ND ND ND ND ND 9-Nov-04 NR 10 ND ND ND ND ND 25-May-05 NR 10 ND ND ND ND ND 1-Nov-05 NR 10 ND ND ND ND ND 23-May-06 NR 10 ND ND ND ND ND 1-Nov-06 NR 10 ND ND ND ND ND 29-May-07 NR 10 ND ND ND ND ND NC 2L = 17.5 pg/L (10/23/07) 27-Nov-07 NR 10 ND ND ND ND ND 27-May-08 0.1 10.0 ND ND 0.30 B ND 0.14 J 4-Nov-08 0.10 10.0 0.19 B 0.31 B 0.76 B 0.18 B 0.20 J 1-Jun-09 0.10 10.0 0.18 J Dry 0.45 J ND ND 19-Nov-09 0.10 10.0 0.22 J 0.34 J 0.42 J 0.16 J ND NC 2L = 20 pg/L (01/01/10) 14-Jun-10 0.10 10.0 ND ND ND ND ND 29-Nov-10 0.10 10.0 ND ND ND ND ND 31-May-11 0.10 10.0 0.18 J 0.14 J ND 0.31 J ND 19-Dec-11 5.0 10.0 ND ND ND ND ND 30-May-12 5.0 10.0 ND ND ND ND ND 3-Dec-12 5.0 10.0 ND ND ND ND ND 10-Jun-13 5.0 10.0 ND ND ND ND ND 28-Oct-13 5.0 10.0 ND ND ND ND ND 5-May-14 5.0 10.0 ND ND ND ND ND 20-Oct-14 5.0 10.0 ND ND ND ND ND 18-May-15 2.5 10.0 ND ND ND ND ND 7-Dec-15 2.5 10.0 ND ND ND ND ND 2-May-16 2.5 10.0 ND ND ND ND ND 12-Dec-16 2.5 10.0 ND ND ND ND ND 26-Jun-17 2.5 10.0 ND ND ND ND ND 14-Dec-17 2.5 10.0 ND ND ND ND ND 14-May-18 2.5 10.0 ND ND ND ND ND 6-May-19 2.5 5.0 ND ND ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 11 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks Thallium 28-Apr-94 NR 1 ND ND ND NI ND 2-May-00 NR 10 ND ND ND NI ND 8-Nov-00 NR 10 ND ND ND NI ND 31-May-01 NR 10 ND ND ND NI ND 6-Nov-01 NR 10 ND ND ND NI ND 21-May-02 NR 10 ND ND ND NI ND 13-Nov-02 NR 10 ND ND ND NI ND 13-May-03 NR 10 ND ND ND NI ND 18-Nov-03 NR 10 ND ND ND ND ND 4-May-04 NR 10 ND ND ND ND ND 9-Nov-04 NR 10 ND ND ND ND ND 25-May-05 NR 10 ND ND 12.0 ND ND 1-Nov-05 NR 10 ND 12.0 14.0 ND ND 23-May-06 NR 10 ND ND ND ND ND 1-Nov-06 NR 10 ND ND ND ND ND 29-May-07 NR 5.5 0.167 J 0.525 J 0.625 J 0.053 J ND GWPS = 0.28 pg/L (10/23/07) 27-Nov-07 NR 5.5 0.422 J 0.475 J 0.593 J 0.073 J ND 27-May-08 3 5.5 ND ND ND ND ND 4-Nov-08 3.0 5.5 ND ND ND ND ND 1-Jun-09 3.0 5.5 ND Dry ND ND ND 19-Nov-09 3.0 5.5 ND ND ND ND ND 14-Jun-10 3.0 5.5 3.8 J 5.3 J 4.1 J ND ND GWPS = 0.28 pg/L (10/1/10) 29-Nov-10 3.0 5.5 ND ND ND ND ND 31-May-11 3.0 5.5 ND ND ND ND ND 19-Dec-11 5.4 5.5 ND ND ND ND ND 30-May-12 5.4 5.5 ND ND ND ND ND 3-Dec-12 5.4 5.5 7.6 ND ND ND ND 10-Jun-13 5.4 5.5 ND ND ND ND ND 28-Oct-13 5.4 5.5 ND ND ND ND ND 5-May-14 5.4 5.5 ND ND ND ND ND 20-Oct-14 5.4 5.5 ND ND ND ND ND 18-May-15 5.0 5.5 ND ND ND ND ND 7-Dec-15 5.0 5.5 ND ND ND ND ND 2-May-16 5.0 5.5 ND ND ND ND ND 12-Dec-16 5.0 5.5 ND ND ND ND 5.5 J 26-Jun-17 5.0 5.5 0.083 J 0.57 J 1.4 J 0.034 J ND 14-Dec-17 0.03 0.10 0.10 0.54 1.4 0.040 J 14-May-18 0.50 5.5 ND ND 1.2 J ND ND 6-May-19 0.06 0.1 0.13 0.42 0.91 0.17 ND Burke County -East Burke La Bella Associates Permit No. 12-02 12 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks Vanadium 28-Apr-94 NR 80 ND ND ND NI ND 2-May-00 NR 40 ND ND ND NI ND 8-Nov-00 NR 40 ND ND ND NI ND 31-May-01 NR 40 ND ND ND NI ND 6-Nov-01 NR 40 ND ND ND NI ND 21-May-02 NR 40 ND ND ND NI ND 13-Nov-02 NR 40 ND ND ND NI ND 13-May-03 NR 40 ND ND ND NI ND 18-Nov-03 NR 40 ND ND ND ND ND 4-May-04 NR 40 ND ND ND ND ND 9-Nov-04 NR 40 ND ND ND ND ND 25-May-05 NR 40 ND ND ND ND ND 1-Nov-05 NR 40 ND ND ND ND ND 23-May-06 NR 40 ND ND ND ND ND 1-Nov-06 NR 10 ND ND ND ND ND 29-May-07 NR 25 ND ND ND ND ND GWPS = 3.5 pg/L (10/23/07) 27-Nov-07 NR 25 ND ND ND ND ND 27-May-08 0.2 25.0 0.90 B 4.5 J 1.0 B 0.93 B 0.22 J 4-Nov-08 0.20 25.0 1.4 B 4.5 J 0.62 B 1.4 B 0.85 J 1-Jun-09 0.20 25.0 0.99 B Dry 0.93 B 2.1 B 1.2 J 19-Nov-09 0.20 25.0 0.81 B 9.1 J 0.96 B 1.4 B 0.58 J 14-Jun-10 0.20 25.0 0.85 B 1.7 J 1.0 B 1.8 J 0.25 J GWPS = 0.3 pg/L (10/1/10) 29-Nov-10 0.20 25.0 1.0 J ND ND ND ND 31-May-11 0.20 25.0 ND ND ND 1.4 J ND 19-Dec-11 5.0 25.0 12.1 J 6.9 J ND 6.7 J ND 30-May-12 5.0 25.0 ND ND ND 6.8 J ND 3-Dec-12 5.0 25.0 ND ND ND 6.9 J ND 10-Jun-13 5.0 25.0 ND ND ND ND ND 28-Oct-13 5.0 25.0 ND ND ND ND ND 5-May-14 5.0 25.0 ND ND ND ND ND 20-Oct-14 5.0 25.0 ND ND ND ND ND 18-May-15 2.5 25.0 ND 7.8 J 3.6 J ND ND 7-Dec-15 2.5 25.0 4.4 J 18.8 J 5.7 J 3.4 J ND 2-May-16 2.5 25.0 ND ND ND 3.2 J ND 12-Dec-16 2.5 25.0 ND ND ND 2.7 J ND 26-Jun-17 2.5 25.0 ND 4.3 J ND ND ND 14-Dec-17 2.5 25.0 ND ND ND ND ND 14-May-18 2.5 25.0 ND ND ND ND ND 6-May-19 2.5 5.0 ND ND ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 13 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks Zinc 28-Apr-94 NR 10 ND ND ND NI ND 2-May-00 NR 50 ND ND ND NI ND 8-Nov-00 NR 50 ND ND ND NI ND 31-May-01 NR 50 ND ND ND NI ND 6-Nov-01 NR 50 ND ND ND NI ND 21-May-02 NR 50 ND ND ND NI ND 13-Nov-02 NR 50 ND ND ND NI ND 13-May-03 NR 50 ND ND ND NI ND 18-Nov-03 NR 50 ND ND ND ND ND 4-May-04 NR 50 ND ND ND ND ND 9-Nov-04 NR 50 ND ND ND ND ND 25-May-05 NR 50 ND ND ND ND ND 1-Nov-05 NR 50 ND ND ND ND ND 23-May-06 NR 50 ND ND ND 76.9 ND 1-Nov-06 NR 10 ND ND ND ND ND 29-May-07 NR 10 4.7 B 11.3 4.6 B 2.9 B 2.0 J NC 2L = 1,050 pg/L (10/23/07) 27-Nov-07 NR 10 9.1 J 9.5 J 7.3 J 1.6 J ND 27-May-08 0.4 10.0 2.6 J 8.6 B 6.4 B ND 4.8 J 4-Nov-08 0.40 10.0 3.3 B 5.4 B 0.77 B ND 8.9 J 1-Jun-09 0.40 10.0 8.7 B Dry 6.5 B 7.0 B 83.0 19-Nov-09 0.40 10.0 6.0 B 14.0 B 5.0 B 4.2 B 3.5 J NC 2L = 1,000 pg/L (01/01/10) 14-Jun-10 0.40 10.0 2.1 BB 17.4 B 20.1 B ND 10.1 29-Nov-10 0.40 10.0 1.9 J 13.0 1.8 J ND ND 31-May-11 0.40 10.0 6.5 B 20.5 B 6.8 B 4.3 B 13.7 19-Dec-11 10.0 10.0 21.3 17.0 ND 10.3 ND 30-May-12 10.0 10.0 ND ND ND ND ND 3-Dec-12 10.0 10.0 ND ND ND ND ND 10-Jun-13 10.0 10.0 ND ND ND ND 76.3 28-Oct-13 10.0 10.0 ND 21.4 ND ND ND 5-May-14 10.0 10.0 ND 18.7 ND ND ND 20-Oct-14 10.0 10.0 ND 13.4 ND ND ND 18-May-15 5.0 10.0 ND 21.7 ND ND ND 7-Dec-15 5.0 10.0 7.8 B 16.7 B 6.3 B ND 7.2 J 2-May-16 5.0 10.0 5.4 J 17.0 5.3 J ND ND 12-Dec-16 5.0 10.0 ND 9.7 J 6.0 J 9.0 J ND 26-Jun-17 5.0 10.0 ND 11.1 5.1 J 6.4 J ND 14-Dec-17 5.0 10.0 5.6 J 10.8 6.6 J 9.9 J ND 14-May-18 5.0 10.0 13 15.4 5.6 J ND ND 6-May-19 5.0 10.0 ND 8.0 J ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 14 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks ORGANICS Acetone 28-Apr-94 NR 100 ND ND ND NI ND 2-May-00 NR 100 ND ND ND NI ND 8-Nov-00 NR 100 ND ND ND NI ND 31-May-01 NR 100 ND ND ND NI ND 6-Nov-01 NR 100 ND ND ND NI ND 21-May-02 NR 100 ND ND ND NI ND 13-Nov-02 NR 100 ND ND ND NI ND 13-May-03 NR 100 210 ND ND NI ND 18-Nov-03 NR 100 ND ND ND ND ND 4-May-04 NR 100 ND ND ND ND ND 9-Nov-04 NR 100 ND ND ND ND ND 25-May-05 NR 100 150 ND ND ND ND 1-Nov-05 NR 100 ND ND ND ND ND 23-May-06 NR 100 ND ND ND ND ND 1-Nov-06 NR 10 ND ND ND ND ND 29-May-07 NR 100 ND ND ND ND ND NC 2L = 700 pg/L (10/23/07) 27-Nov-07 NR 100 7.6 B 5.9 B 4.0 B 4.1 B 4.3 J 27-May-08 20 100 ND ND ND ND ND 4-Nov-08 20.0 100 ND ND ND ND ND 1-Jun-09 2.2 100 65.9 J Dry ND ND 3.2 J 19-Nov-09 2.2 100 ND 2.8 B 3.8 B 21.9 B 3.8 J NC 2L = 6,000 pg/L (01/01/10) 14-Jun-10 2.2 100 6.3 B 4.0 B ND ND 8.9 J 29-Nov-10 2.2 100 ND ND ND ND 2.3 J 31-May-11 2.2 100 3.0 B 4.0 B 4.0 B ND 3.9 J 19-Dec-11 2.2 100 ND ND ND ND 6.6 J 30-May-12 2.2 100 ND ND ND ND ND 3-Dec-12 10.0 100 ND ND ND ND ND 10-Jun-13 10.0 100 ND ND ND ND ND 28-Oct-13 10.0 100 ND 11.4 J ND ND ND 5-May-14 10.0 100 ND ND ND ND ND 20-Oct-14 10.0 100 ND ND ND ND ND 18-May-15 10.0 100 ND ND ND ND ND 7-Dec-15 10.0 100 ND ND ND ND ND 2-May-16 10.0 100 ND ND ND ND ND 12-Dec-16 10.0 100 ND ND ND ND ND 26-Jun-17 10.0 100 11.6 J 21.1 J 11 J 17.8 J 23 J 14-Dec-17 10.0 100 ND ND N ND ND ND 14-May-18 10.0 100 ND 10.5 J ND ND ND 6-May-19 8.2 25 ND ND ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 15 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks Benzene 28-Apr-94 NR 5 ND 6.1 ND NI ND 2-May-00 NR 5 ND ND ND NI ND 8-Nov-00 NR 5 ND ND ND NI ND 31-May-01 NR 5 ND ND ND NI ND 6-Nov-01 NR 5 ND ND ND NI ND 21-May-02 NR 5 ND ND ND NI ND 13-Nov-02 NR 5 ND ND ND NI ND 13-May-03 NR 5 ND ND ND NI ND 18-Nov-03 NR 5 ND ND ND ND ND 4-May-04 NR 5 ND ND ND ND ND 9-Nov-04 NR 5 ND ND ND ND ND 25-May-05 NR 5 ND ND ND ND ND 1-Nov-05 NR 5 ND ND ND ND ND 23-May-06 NR 5 ND ND ND ND ND 1-Nov-06 NR 10 ND ND ND ND ND 29-May-07 NR 1.0 1.0 2.0 0.9 J ND ND NC 2L = 1 pg/L (10/23/07) 27-Nov-07 NR 1 ND ND ND ND ND 27-May-08 0.25 1.0 0.83 J 2.0 0.74 J ND ND 4-Nov-08 0.25 1.0 0.38 J 2.5 0.88 J ND ND 1-Jun-09 0.25 1.0 0.92 J Dry 0.74 J ND ND 19-Nov-09 0.25 1.0 ND ND ND 1.1 ND 14-Jun-10 0.25 1.0 0.62 J 2.3 0.81 J ND ND 29-Nov-10 0.25 1.0 ND 2.4 ND ND ND 31-May-11 0.25 1.0 0.62 J 2.1 0.75 J ND ND 19-Dec-11 0.25 1.0 0.68 J 1.7 0.75 J ND ND 30-May-12 0.25 1.0 0.81 J 1.6 0.68 J ND ND 3-Dec-12 0.25 1.0 0.87 J 1.3 0.67 J ND ND 10-Jun-13 0.25 1.0 0.79 J 2.0 0.75 J ND ND 28-Oct-13 0.25 1.0 ND 1.1 0.70 J ND ND 5-May-14 0.25 1.0 0.38 J 1.6 0.78 J ND ND 20-Oct-14 0.25 1.0 0.36 J 1.3 0.62 J ND ND 18-May-15 0.25 1.0 ND 0.80 J 0.50 J ND ND 7-Dec-15 0.25 1.0 ND 0.76 J ND ND ND 2-May-16 0.25 1.0 0.33 J 0.89 J 0.65 J ND ND 12-Dec-16 0.25 1.0 0.3 J 1.2 0.62 J ND ND 26-Jun-17 0.25 1.0 0.34 J 0.94 J 0.65 J ND ND 14-Dec-17 0.25 1.0 0.44 J 0.65 J 0.56 J ND ND 14-May-18 0.25 1.0 0.28 J 0.90 J 0.49 J ND ND 6-May-19 0.20 1.0 0.24 J 4.7 1.8 ND ND Resample > 24-Jul-19 0.15 1.0 0.95 J 0.63 J Burke County -East Burke La Bella Associates Permit No. 12-02 16 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks 2-Butanone (MEK) 19-Nov-09 0.96 100 ND ND ND 2.8 J ND NC 2L = 4,000 pg/L (01/01/10) 14-Jun-10 0.96 100 ND ND ND ND 1.6 J 29-Nov-10 0.96 100 ND ND ND ND ND 31-May-11 0.96 100 ND ND ND ND ND 19-Dec-11 0.96 100 ND ND ND ND ND 30-May-12 0.96 100 ND ND ND ND ND 3-Dec-12 0.96 100 ND ND ND ND ND 10-Jun-13 0.96 100 ND ND ND ND ND 28-Oct-13 0.96 100 ND ND ND ND ND 5-May-14 0.96 100 ND ND ND ND ND 20-Oct-14 0.96 100 ND ND ND ND ND 18-May-15 0.96 100 ND ND ND ND ND 7-Dec-15 0.96 100 ND ND ND ND ND 2-May-16 0.96 100 ND ND ND ND ND 12-Dec-16 0.96 100 ND ND ND ND ND 26-Jun-17 0.96 100 ND ND ND ND ND 14-Dec-17 0.96 100 ND ND ND ND ND 14-May-18 0.96 100 ND ND ND ND ND 6-May-19 3.20 5 ND ND ND ND ND Carbon Disulfide 12-May-99 NR 5 5.8 ND ND NI ND 19-Oct-99 NR 100 ND ND ND NI ND 2-May-00 NR 100 ND ND ND NI ND 8-Nov-00 NR 100 ND ND ND NI ND 31-May-01 NR 100 ND ND ND NI ND 6-Nov-01 NR 100 ND ND ND NI ND 21-May-02 NR 100 ND ND ND NI ND 13-Nov-02 NR 100 ND ND ND NI ND 13-May-03 NR 100 ND ND ND NI ND 18-Nov-03 NR 100 ND ND ND ND ND 4-May-04 NR 100 ND ND ND ND ND 9-Nov-04 NR 100 ND ND ND ND ND 25-May-05 NR 100 ND ND ND ND ND 1-Nov-05 NR 100 ND ND ND ND ND 23-May-06 NR 100 ND ND ND ND ND 1-Nov-06 NR 10 ND ND ND ND ND 29-May-07 NR 100 ND ND ND ND ND INC 2L = 700 pg/L (10/23/07) 27-Nov-07 NR 100 ND ND ND ND ND 27-May-08 1.2 100 ND ND ND ND ND 4-Nov-08 1.2 100 ND ND ND ND ND 1-Jun-09 1.2 100 ND Dry ND ND ND 19-Nov-09 1.2 100 ND ND ND ND ND 14-Jun-10 1.2 100 ND ND ND ND ND 29-Nov-10 1.2 100 ND ND ND ND ND 31-May-11 1.2 100 ND ND ND ND ND 19-Dec-11 1.2 100 ND ND ND ND ND 30-May-12 1.2 100 ND ND ND ND ND 3-Dec-12 1.2 100 ND ND ND ND ND 10-Jun-13 1.2 100 ND ND ND ND ND 28-Oct-13 1.2 100 ND ND ND ND ND 5-May-14 1.2 100 ND ND ND ND ND 20-Oct-14 1.2 100 ND ND ND ND ND 18-May-15 1.2 100 ND ND ND ND ND 7-Dec-15 1.2 100 ND ND ND ND ND 2-May-16 1.2 100 ND ND ND ND ND 12-Dec-16 1.2 100 ND ND ND ND ND 26-Jun-17 1.2 100 ND ND ND ND ND 14-Dec-17 1.2 100 ND ND ND ND ND 14-May-18 1.2 100 ND ND ND ND ND 6-May-19 0.8 10 ND ND ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 17 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks Chlorobenzene 29-May-07 NR 3 ND 0.73 J 0.76 J 0.24 J ND NC 2L = 50 pg/L (10/23/07) 27-Nov-07 NR 3 ND ND ND ND ND 27-May-08 0.23 3.0 ND 0.57 J 0.58 J ND ND 4-Nov-08 0.23 3.0 ND 0.41 J 0.56 J ND ND 1-Jun-09 0.23 3.0 ND Dry 0.55 J ND ND 19-Nov-09 0.23 3.0 ND ND ND 0.23 J ND 14-Jun-10 0.23 3.0 ND 0.70 J 0.58 J ND ND 29-Nov-10 0.23 3.0 ND 0.84 J ND ND ND 31-May-11 0.23 3.0 ND 0.65 J 0.63 J ND ND 19-Dec-11 0.23 3.0 ND 0.59 J 0.65 J ND ND 30-May-12 0.23 3.0 ND 0.42 J 0.68 J ND ND 3-Dec-12 0.23 3.0 ND 0.32 J 0.60 J ND ND 10-Jun-13 0.23 3.0 ND 0.43 J 0.60 J ND ND 28-Oct-13 0.23 3.0 ND 0.50 J 0.64 J ND ND 5-May-14 0.23 3.0 ND 0.73 J 0.72 J ND ND 20-Oct-14 0.23 3.0 ND 0.67 J 0.70 J ND ND 18-May-15 0.23 3.0 ND ND 0.77 J ND ND 7-Dec-15 0.23 3.0 ND 0.42 J 0.58 J ND ND 2-May-16 0.23 3.0 ND 0.54 J 0.84 J ND ND 12-Dec-16 0.23 3.0 ND 0.46 J 0.67 J ND ND 26-Jun-17 0.23 3.0 ND ND ND ND ND 14-Dec-17 0.23 3.0 ND 0.37 J 0.73 J ND ND 14-May-18 0.23 3.0 ND 0.26 J 0.72 J ND ND 6-May-19 0.53 1.0 ND 35.50 8.90 ND ND Chloromethane 1-Jun-09 0.11 1.0 ND Dry 0.21 J ND ND NC 2L = 2.6 pg/L (10/23/07) 19-Nov-09 0.11 1.0 ND ND ND ND ND NC 2L = 3 pg/L (01/01/10) 14-Jun-10 0.11 1.0 ND ND ND ND 0.12 J 29-Nov-10 0.11 1.0 ND ND ND ND ND 31-May-11 0.11 1.0 ND ND ND ND ND 19-Dec-11 0.11 1.0 ND ND ND ND ND 30-May-12 0.11 1.0 ND ND ND ND ND 3-Dec-12 0.11 1.0 ND ND ND ND ND 10-Jun-13 0.11 1.0 ND ND ND ND ND 28-Oct-13 0.11 1.0 ND ND ND ND ND 5-May-14 0.11 1.0 ND ND ND ND ND 20-Oct-14 0.11 1.0 ND ND ND ND ND 18-May-15 0.11 1.0 ND ND ND ND ND 7-Dec-15 0.11 1.0 ND ND ND ND ND 2-May-16 0.11 1.0 ND ND ND ND ND 12-Dec-16 0.11 1.0 ND ND ND ND 0.36 J 26-Jun-17 0.11 1.0 ND ND ND ND ND 14-Dec-17 0.11 1.0 ND ND ND ND ND 14-May-18 0.11 1.0 ND ND ND ND ND 6-May-19 0.38 1.0 ND ND ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 18 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks 1,2-Dichlorobenzene 28-Oct-13 5.00 30.0 ND ND ND 0.86 J ND NC 2L = 20 pg/L (01/01/10) 5-May-14 0.30 5.0 ND ND ND ND ND 20-Oct-14 0.30 5.0 ND ND ND ND ND 18-May-15 0.30 5.0 ND ND ND ND ND NC 2L = 20 pg/L (01/01/10) 7-Dec-15 0.30 5.0 ND ND ND ND ND 2-May-16 0.30 5.0 ND ND ND ND ND 12-Dec-16 0.30 5.0 ND ND ND ND ND 26-Jun-17 0.30 5.0 ND ND ND ND ND 14-Dec-17 0.30 5.0 ND ND ND ND ND 14-May-18 0.30 5.0 ND ND ND ND ND 6-May-19 0.49 1.0 ND 0.88 J ND ND ND 1,4-Dichlorobenzene 28-Apr-94 NR 5 ND 7.1 ND NI ND 2-May-00 NR 5 ND 10.0 5.2 NI ND 8-Nov-00 NR 5 ND 9.9 5.9 NI ND 31-May-01 NR 5 ND ND ND NI ND 6-Nov-01 NR 5 ND ND ND NI ND 21-May-02 NR 5 ND 8.2 6.4 NI ND 13-Nov-02 NR 5 ND 7.6 ND NI ND 13-May-03 NR 5 5.0 5.5 ND NI ND 18-Nov-03 NR 5 ND 5.4 5.4 ND ND 4-May-04 NR 5 ND 7.4 5.0 ND ND 9-Nov-04 NR 5 ND 7.4 5.1 ND ND 25-May-05 NR 5 ND 6.0 5.0 ND ND 1-Nov-05 NR 5 ND 8.0 5.0 ND ND 23-May-06 NR 5 ND 5.8 ND ND ND 6-Nov-06 NR 3 ND 6.7 5.5 ND ND 29-May-07 NR 1 3.6 8.1 6.5 2.2 ND NC 2L = 1.4 pg/L (10/23/07) 27-Nov-07 NR 1 2.7 7.2 5.5 ND ND 27-May-08 0.33 1.0 2.5 8.2 4.7 1.0 ND 4-Nov-08 0.33 1.0 1.2 6.3 4.8 0.94 J ND 1-Jun-09 0.33 1.0 3.4 Dry 4.6 1.2 ND 19-Nov-09 0.33 1.0 ND ND ND 3.7 ND NC 2L = 6 pg/L (01/01/10) 14-Jun-10 0.33 1.0 1.7 2.4 4.6 1.2 ND 29-Nov-10 0.33 1.0 0.97 J 4.2 5.3 1.4 ND 31-May-11 0.33 1.0 1.4 5.6 4.8 0.96 J ND 19-Dec-11 0.33 1.0 1.4 6.3 4.7 0.62 J ND 30-May-12 0.33 1.0 1.9 5.0 4.3 0.73 J ND 3-Dec-12 0.33 1.0 1.7 3.4 4.3 0.63 J ND 10-Jun-13 0.33 1.0 1.5 4.1 4.1 0.77 J ND 28-Oct-13 0.30 1.0 1.1 1.6 4.5 0.88 J ND 5-May-14 0.33 1.0 0.89 J 4.7 4.7 0.78 J ND 20-Oct-14 0.33 1.0 0.92 J 5.3 4.6 0.91 J ND 18-May-15 0.33 1.0 1.2 5.1 4.6 0.68 J ND 7-Dec-15 0.33 1.0 1.2 4.8 4.1 0.50 J ND 2-May-16 0.33 1.0 1.1 2.7 4.4 0.65 J ND 12-Dec-16 0.33 1.0 0.60 J 3.6 4.3 0.60 J ND 26-Jun-17 0.33 1.0 ND 3.5 4.3 ND ND 14-Dec-17 0.33 1.0 1.10 4.7 4.4 0.80 J ND 14-May-18 0.33 1.0 1.20 2.9 3.6 0.63 J ND 6-May-19 0.58 1.0 0.74 J 14 4.9 ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 19 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks 1,1-Dichloroethane 28-Apr-94 NR 5 ND 6.1 16.0 NI ND 2-May-00 NR 5 ND ND 8.8 J NI ND 8-Nov-00 NR 5 ND ND 11.0 NI ND 31-May-01 NR 5 ND ND 8.4 NI ND 6-Nov-01 NR 5 ND ND 7.4 NI ND 21-May-02 NR 5 ND ND 11.0 NI ND 13-Nov-02 NR 5 ND ND 8.1 NI ND 13-May-03 NR 5 ND ND 6.0 NI ND 18-Nov-03 NR 5 ND ND 6.0 ND ND 4-May-04 NR 5 ND ND 5.2 ND ND 9-Nov-04 NR 5 ND ND ND ND ND 25-May-05 NR 5 ND ND 5.0 ND ND 1-Nov-05 NR 5 ND ND 5.0 ND ND 23-May-06 NR 5 ND ND ND ND ND 1-Nov-06 NR 10 ND ND ND ND ND 29-May-07 NR 5 1.9 J 2.3 J 5.1 4.0 J ND NC 2L = 70 pg/L (10/23/07) 27-Nov-07 NR 5.0 ND 0.58 J 2.7 J 1.2 J ND 27-May-08 0.32 5.0 0.36 J 0.71 J 2.8 J 1.1 J ND 4-Nov-08 0.32 5.0 0.34 J 0.79 J 3.4 J 0.88 J ND 1-Jun-09 0.32 5.0 0.35 J Dry 2.6 J 0.62 J ND 19-Nov-09 0.32 5.0 ND ND ND 0.32 J ND NC 2L = 6 pg/L (01/01/10) 14-Jun-10 0.32 5.0 0.32 J 0.41 J 2.3 J 1.5 J ND 29-Nov-10 0.32 5.0 ND ND 2.7 J ND ND 31-May-11 0.32 5.0 0.35 J 0.40 J 2.6 J 0.67 J ND 19-Dec-11 0.32 5.0 ND ND 2.2 J ND ND 30-May-12 0.32 5.0 ND ND 1.9 J ND ND 3-Dec-12 0.32 5.0 ND ND 1.7 J ND ND 10-Jun-13 0.32 5.0 ND ND 1.8 J ND ND 28-Oct-13 0.32 5.0 ND ND 1.5 J 0.42 J ND 5-May-14 0.32 5.0 ND ND 1.6 J 0.57 J ND 20-Oct-14 0.32 5.0 ND ND 1.3 J 0.46 J ND 18-May-15 0.32 5.0 ND ND 0.87 J ND ND 7-Dec-15 0.32 5.0 ND ND 0.91 J ND ND 2-May-16 0.32 5.0 ND ND 0.95 J ND ND 12-Dec-16 0.32 5.0 ND ND 0.97 J ND ND 26-Jun-17 0.32 5.0 ND ND 0.97 J ND ND 14-Dec-17 0.32 5.0 ND ND 0.89 J ND ND 14-May-18 0.32 5.0 ND ND 0.63 J ND ND 6-May-19 0.41 1.0 ND 0.46 J 5.8 ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 20 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks 1,2-Dichloroethane 31-May-11 0.12 1.0 ND ND 0.12 J ND ND NC 2L = 0.4 pg/L (01/01/10) 19-Dec-11 0.12 1.0 ND ND ND ND ND 30-May-12 0.12 1.0 ND ND ND ND ND 3-Dec-12 0.12 1.0 ND ND ND ND ND 10-Jun-13 0.12 1.0 ND ND ND ND ND 28-Oct-13 0.12 1.0 ND ND ND ND ND 5-May-14 0.12 1.0 ND ND ND ND ND 20-Oct-14 0.12 1.0 ND ND ND ND ND 18-May-15 0.12 1.0 ND ND ND ND ND 7-Dec-15 0.24 1.0 ND ND ND ND ND 2-May-16 0.24 1.0 ND ND ND ND ND 12-Dec-16 0.24 1.0 ND ND ND ND ND 26-Jun-17 0.24 1.0 ND ND ND ND ND 14-Dec-17 0.24 1.0 ND ND ND ND ND 14-May-18 0.24 1.0 ND ND ND ND ND 6-May-19 0.67 1.0 ND ND ND ND ND cis-1,2-Dichloroethene 28-Apr-94 NR 5 12.0 80.0 20.0 NI ND 2-May-00 NR 5 11.0 58.0 22.0 NI ND 8-Nov-00 NR 5 16.0 65.0 33.0 NI ND 31-May-01 NR 5 11.0 75.0 26.0 NI ND 6-Nov-01 NR 5 15.0 68.0 22.0 NI ND 21-May-02 NR 5 21.0 92.0 34.0 NI ND 13-Nov-02 NR 5 16.0 100 29.0 NI ND 1-Apr-03 NR 5 NA NA NA ND NA 13-May-03 NR 5 21.0 82.0 26.0 NA ND 1-Jul-03 NR 5 NA NA NA NA ND 18-Nov-03 NR 5 9.0 91.0 28.0 23.0 ND 4-May-04 NR 5 11.0 78.0 26.0 19.0 ND 9-Nov-04 NR 5 11.0 66.0 24.0 13.0 N D 25-May-05 NR 5 14.0 59.0 28.0 17.0 ND 1-Nov-05 NR 5 ND 26.0 11.0 7.0 ND 23-May-06 NR 5 ND 26.8 14.0 7.4 ND 1-Nov-06 NR 5 13.0 53.0 25.0 13.0 ND 29-May-07 NR 5 15.0 49.0 24.0 20.0 ND NC 2L = 70 pg/L (10/23/07) 27-Nov-07 NR 5 ND 43.0 20.0 7.7 ND 27-May-08 0.19 5.0 9.8 50.3 22.0 7.4 ND 4-Nov-08 0.19 5.0 5.1 61.4 27.9 4.2 J ND 1-Jun-09 0.19 5.0 12.1 Dry 21.1 2.7 J ND 19-Nov-09 0.19 5.0 ND ND ND 12.6 0.26 J 14-Jun-10 0.19 5.0 6.6 51.4 21.7 21.4 ND 29-Nov-10 0.19 5.0 4.4 J 56.5 23.0 11.6 ND 31-May-11 0.19 5.0 7.0 56.2 25.6 12.2 ND 19-Dec-11 0.19 5.0 6.8 41.1 20.9 1.7 J ND 30-May-12 0.19 5.0 8.8 40.1 19.6 1.3 J ND 3-Dec-12 0.19 5.0 7.3 30.0 18.7 0.58 J ND 10-Jun-13 0.19 5.0 7.0 43.0 20.4 0.61 J ND 28-Oct-13 0.19 5.0 4.4 J 23.6 18.4 4.7 J ND 5-May-14 0.19 5.0 2.9 J 40.5 19.2 8.5 ND 20-Oct-14 0.19 5.0 2.7 J 33.9 16.6 7.0 ND 18-May-15 0.19 5.0 2.7 J 19.2 13.4 5.8 ND 7-Dec-15 0.19 5.0 4.0 J 26.9 15.4 3.2 J ND 2-May-16 0.19 5.0 2.1 J 17.2 13.8 7.1 ND 12-Dec-16 0.19 5.0 2.1 J 31.2 16.9 5.2 ND 26-Jun-17 0.19 5.0 2.3 J 24.0 14.7 4.9 J ND 14-Dec-17 0.19 5.0 3.0 J 21.6 15.3 2.6 J ND 14-May-18 0.19 5.0 1.9 J 18.9 10.6 3.6 J ND 6-May-19 0.66 1.0 1.6 ND 18 1.4 ND Burke County -East Burke La Bella Associates Permit No. 12-02 21 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks trans-1,2-Dichloroethene 29-May-07 NR 5 ND ND ND 0.4 J ND NC 2L = 100 pg/L (10/23/07) 27-Nov-07 NR 5 ND ND ND ND ND 27-May-08 0.49 5.0 ND ND ND ND ND 4-Nov-08 0.49 5.0 ND ND ND ND ND 1-Jun-09 0.49 5.0 ND Dry ND ND ND 19-Nov-09 0.49 5.0 ND ND ND ND ND 14-Jun-10 0.49 5.0 ND ND ND ND ND 29-Nov-10 0.49 5.0 ND ND ND ND ND 31-May-11 0.49 5.0 ND ND ND ND ND 19-Dec-11 0.49 5.0 ND ND ND ND ND 30-May-12 0.49 5.0 ND ND ND ND ND 3-Dec-12 0.49 5.0 ND ND ND ND ND 10-Jun-13 0.49 5.0 ND ND ND ND ND 28-Oct-13 0.49 5.0 ND ND ND ND ND 5-May-14 0.49 5.0 ND ND ND ND ND 20-Oct-14 0.49 5.0 ND ND ND ND ND 18-May-15 0.49 5.0 ND ND ND ND ND 7-Dec-15 0.49 5.0 ND ND ND ND ND 2-May-16 0.49 5.0 ND ND ND ND ND 12-Dec-16 0.49 5.0 ND ND ND ND ND 26-Jun-17 0.49 5.0 ND ND ND ND ND 14-Dec-17 0.49 5.0 ND ND ND ND ND 14-May-18 0.49 5.0 ND ND ND ND ND 6-May-19 0.46 1.0 ND ND ND ND ND Bromomethane 27-May-08 0.29 10.0 3.4 J ND ND ND ND NC 2L = NE pg/L (10/23/07) 4-Nov-08 0.29 10.0 ND ND ND ND ND 1-Jun-09 0.29 10.0 ND Dry ND ND ND 19-Nov-09 0.29 10.0 ND ND ND ND ND 14-Jun-10 0.29 10.0 ND ND ND ND ND GWPS = 10 pg/L (8/1/10) 29-Nov-10 0.29 10.0 ND ND ND ND ND 31-May-11 0.29 10.0 ND ND ND ND ND 19-Dec-11 0.29 10.0 ND ND ND ND ND 30-May-12 0.29 10.0 ND ND ND ND ND 3-Dec-12 0.29 10.0 ND ND ND ND ND 10-Jun-13 0.29 10.0 ND ND ND ND ND 28-Oct-13 0.29 10.0 ND ND ND ND ND 5-May-14 0.29 10.0 ND ND ND ND ND 20-Oct-14 0.29 10.0 ND ND ND ND ND 18-May-15 0.29 10.0 ND ND ND ND ND 7-Dec-15 0.29 10.0 ND ND ND ND ND 2-May-16 0.29 10.0 ND ND ND ND ND 12-Dec-16 0.29 10.0 ND ND ND ND ND 26-Jun-17 0.29 10.0 ND ND ND ND ND 14-Dec-17 0.29 10.0 ND ND ND ND ND 14-May-18 0.29 10.0 ND ND ND ND ND 6-May-19 0.95 2.0 ND ND ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 22 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks 1,2-Dichloropropane 14-Jun-10 0.27 1.0 ND ND ND 0.32 J ND NC 2L = 0.6 pg/L (01/01/10) 29-Nov-10 0.27 1.0 ND ND ND ND ND 31-May-11 0.27 1.0 ND ND ND ND ND 19-Dec-11 0.27 1.0 ND ND ND ND ND 30-May-12 0.27 1.0 ND ND ND ND ND 3-Dec-12 0.27 1.0 ND ND 0.28 J ND ND 10-Jun-13 0.27 1.0 ND ND ND ND ND 28-Oct-13 0.27 1.0 ND ND ND ND ND 5-May-14 0.27 1.0 ND ND ND ND ND 20-Oct-14 0.27 1.0 ND ND ND ND ND 18-May-15 0.27 1.0 ND ND ND ND ND 7-Dec-15 0.27 1.0 ND ND ND ND ND 2-May-16 0.27 1.0 ND ND ND ND ND 12-Dec-16 0.27 1.0 ND ND ND ND ND 26-Jun-17 0.27 1.0 ND ND ND ND ND 14-Dec-17 0.27 1.0 ND ND ND ND ND 14-May-18 0.27 1.0 ND ND ND ND ND 6-May-19 0.60 1.0 ND ND 1.0 ND ND Resample > 24-Jul-19 0.60 1.0 ND ND ND ND ND Ethylbenzene 14-Jun-10 0.26 1.0 ND 0.35 J ND ND ND NC 2L = 600 pg/L (01/01/10) 29-Nov-10 0.30 1.0 ND ND ND ND ND 31-May-11 0.30 1.0 ND ND ND ND ND 19-Dec-11 0.30 1.0 ND ND ND ND ND 30-May-12 0.30 1.0 ND ND ND ND ND 3-Dec-12 0.30 1.0 ND ND ND ND ND 10-Jun-13 0.30 1.0 ND ND ND ND ND 28-Oct-13 0.30 1.0 ND ND ND ND ND 5-May-14 0.30 1.0 ND ND ND ND ND 20-Oct-14 0.30 1.0 ND ND ND ND ND 18-May-15 0.30 1.0 ND ND ND ND ND 7-Dec-15 0.30 1.0 ND ND ND ND ND 2-May-16 0.30 1.0 ND ND ND ND ND 12-Dec-16 0.30 1.0 ND ND ND ND ND 26-Jun-17 0.30 1.0 ND ND ND ND ND 14-Dec-17 0.30 1.0 ND ND ND ND ND 14-May-18 0.30 1.0 ND ND ND ND ND 6-May-19 0.45 1.0 ND ND ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 23 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks Styrene 1-Jun-09 0.26 1.0 2.0 Dry ND ND ND NC 2L = 100 pg/L (10/23/07) 19-Nov-09 0.26 1.0 ND ND ND ND ND NC 2L = 70 pg/L (01/01/10) 14-Jun-10 0.26 1.0 ND ND ND ND ND 29-Nov-10 0.26 1.0 ND ND ND ND ND 31-May-11 0.26 1.0 ND ND ND ND ND 19-Dec-11 0.26 1.0 ND ND ND ND ND 30-May-12 0.26 1.0 ND ND ND ND ND 3-Dec-12 0.26 1.0 ND ND ND ND ND 10-Jun-13 0.26 1.0 ND ND ND ND ND 28-Oct-13 0.26 1.0 ND ND ND ND ND 5-May-14 0.26 1.0 ND ND ND ND ND 20-Oct-14 0.26 1.0 ND ND ND ND ND 18-May-15 0.26 1.0 ND ND ND ND ND 7-Dec-15 0.26 1.0 ND ND ND ND ND 2-May-16 0.26 1.0 ND ND ND ND ND 12-Dec-16 0.26 1.0 ND ND ND ND ND 26-Jun-17 0.26 1.0 ND ND ND ND ND 14-Dec-17 0.26 1.0 ND ND ND ND ND 14-May-18 0.26 1.0 ND ND ND ND ND 6-May-19 0.50 1.0 ND ND ND ND ND Methylene Chloride 28-Apr-94 NR 5 ND 5.8 7.8 NI ND 2-May-00 NR 10 ND ND ND NI ND 8-Nov-00 NR 10 ND ND ND NI ND 31-May-01 NR 10 ND ND ND NI ND 6-Nov-01 NR 10 ND ND ND NI ND 21-May-02 NR 10 ND ND ND NI ND 13-Nov-02 NR 10 ND ND ND NI ND 13-May-03 NR 10 ND ND ND NI ND 18-Nov-03 NR 10 ND ND ND ND ND 4-May-04 NR 10 ND ND ND ND ND 9-Nov-04 NR 10 ND ND ND ND ND 25-May-05 NR 10 ND ND ND ND ND 1-Nov-05 NR 10 ND ND ND ND ND 23-May-06 NR 10 ND ND ND ND ND 1-Nov-06 NR 10 ND ND ND ND ND 29-May-07 NR 1 ND ND ND ND ND NC 2L = 4.6 pg/L (10/23/07) 27-Nov-07 NR 1 ND ND ND ND ND 27-May-08 0.97 2.0 ND ND ND ND 1.5 J 4-Nov-08 0.97 2.0 ND ND ND ND 2.8 1-Jun-09 0.97 2.0 ND Dry ND ND ND 19-Nov-09 0.97 2.0 ND ND ND ND ND NC 2L = 5 pg/L (01/01/10) 14-Jun-10 0.97 2.0 ND ND ND ND ND 29-Nov-10 0.97 1.0 ND ND ND ND ND 31-May-11 0.97 1.0 ND ND ND ND ND 19-Dec-11 0.97 1.0 ND ND ND ND 3.3 30-May-12 0.97 1.0 ND ND ND ND ND 3-Dec-12 0.97 1.0 ND ND ND ND ND 10-Jun-13 0.97 1.0 ND ND ND ND ND 28-Oct-13 0.97 1.0 ND ND ND ND ND 5-May-14 0.97 1.0 ND ND ND ND 2.6 20-Oct-14 0.97 1.0 ND ND ND ND ND 18-May-15 0.97 1.0 ND ND ND ND 1.3 7-Dec-15 0.97 1.0 ND ND ND ND ND 2-May-16 0.97 1.0 ND ND ND ND ND 12-Dec-16 0.97 1.0 ND ND ND ND ND 26-Jun-17 0.97 1.0 ND ND ND ND 1.3 C9 14-Dec-17 0.97 1.0 ND ND ND ND 2.1 C9 14-May-18 0.97 1.0 ND ND ND ND ND 6-May-19 0.50 1.0 ND ND ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 24 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks Tetrachloroethene 28-Apr-94 NR 5.0 ND 14.0 6.2 NI ND (PCE) 6-Oct-94 NR 5.0 ND 13.0 10.0 NI ND 2-May-00 NR 5 ND ND ND NI ND 8-Nov-00 NR 5 ND ND ND NI ND 31-May-01 NR 5 ND ND ND NI ND 6-Nov-01 NR 5 ND ND ND NI ND 21-May-02 NR 5 ND ND ND NI ND 13-Nov-02 NR 5 ND ND ND NI ND 13-May-03 NR 5 ND ND ND NI ND 18-Nov-03 NR 5 ND ND ND ND ND 4-May-04 NR 5 ND ND ND ND ND 9-Nov-04 NR 0.6 ND ND ND ND ND 25-May-05 NR 5 ND ND ND ND ND 1-Nov-05 NR 5 ND ND ND ND ND 23-May-06 NR 5 ND ND ND ND ND 1-Nov-06 NR 10 ND ND ND ND ND 29-May-07 NR 1 0.6 J 0.57 J 1.0 ND ND NC 2L = 0.7 pg/L (10/23/07) 27-Nov-07 NR 1 ND 0.43 J 0.67 J ND ND 27-May-08 0.46 1.0 0.53 J 0.54 J 0.60 J ND ND 4-Nov-08 0.46 1.0 0.48 J ND 0.58 J ND ND 1-Jun-09 0.46 1.0 0.49 J Dry 0.48 J ND ND 19-Nov-09 0.46 1.0 ND ND ND ND ND 14-Jun-10 0.46 1.0 0.53 J ND ND ND ND 29-Nov-10 0.46 1.0 ND ND ND ND ND 31-May-11 0.46 1.0 ND ND ND ND ND 19-Dec-11 0.46 1.0 ND ND 0.49 B ND 0.77 J 30-May-12 0.46 1.0 ND ND ND ND ND 3-Dec-12 0.46 1.0 ND ND ND ND ND 10-Jun-13 0.46 1.0 0.50 J ND ND ND ND 28-Oct-13 0.46 1.0 ND ND ND ND ND 5-May-14 0.46 1.0 ND ND ND ND ND 20-Oct-14 0.46 1.0 ND ND ND ND ND 18-May-15 0.46 1.0 ND ND ND ND ND 7-Dec-15 0.46 1.0 ND ND ND ND ND 2-May-16 0.46 1.0 0.55 J ND ND ND ND 12-Dec-16 0.46 1.0 ND ND ND ND ND 26-Jun-17 0.46 1.0 ND ND ND ND ND 14-Dec-17 0.46 1.0 ND ND ND ND ND 14-May-18 0.46 1.0 ND ND ND ND ND 6-May-19 0.78 1.0 ND ND 11.3 ND ND Resample > 24-Jul-19 0.78 1.0 ND ND ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 25 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks Trichloroethene 28-Apr-94 NR 5 ND 9.9 7.2 NI ND (TCE) 6-Oct-94 NR 5 ND 10.0 7.6 NI ND 2-May-00 NR 5 ND ND ND NI ND 8-Nov-00 NR 5 ND ND 5.5 NI ND 31-May-01 NR 5 ND ND ND NI ND 6-Nov-01 NR 5 ND ND ND NI ND 21-May-02 NR 5 ND ND ND NI ND 13-Nov-02 NR 5 ND ND ND NI ND 13-May-03 NR 5 ND ND ND NI ND 18-Nov-03 NR 5 ND ND ND ND ND 4-May-04 NR 5 ND ND ND ND ND 9-Nov-04 NR 5 ND ND ND ND ND 25-May-05 NR 5 ND ND ND ND ND 1-Nov-05 NR 5 ND ND ND ND ND 23-May-06 NR 5 ND ND ND ND ND 1-Nov-06 NR 10 ND ND ND ND ND 29-May-07 NR 1 ND 2.9 3.1 3.0 ND NC 2L = 2.8 pg/L (10/23/07) 27-Nov-07 NR 1 ND 1.5 1.7 ND ND 27-May-08 0.47 1.0 ND 1.5 1.6 0.56 J ND 4-Nov-08 0.47 1.0 ND 1.6 1.6 ND ND 1-Jun-09 0.47 1.0 ND Dry 1.4 ND ND 19-Nov-09 0.47 1.0 ND ND ND ND ND NC 2L = 3 pg/L (01/01/10) 14-Jun-10 0.47 1.0 ND 0.92 J 1.3 1.2 ND 29-Nov-10 0.47 1.0 ND 1.3 1.5 ND ND 31-May-11 0.47 1.0 ND 0.84 J 1.3 0.59 J ND 19-Dec-11 0.47 1.0 ND 0.87 J 1.3 ND ND 30-May-12 0.47 1.0 ND 0.61 J 1.1 ND ND 3-Dec-12 0.47 1.0 ND 0.68 J 1.0 ND ND 10-Jun-13 0.47 1.0 ND 1.8 1.1 ND ND 28-Oct-13 0.47 1.0 ND 0.50 J 0.86 J ND ND 5-May-14 0.47 1.0 ND 0.85 J 0.92 J 0.57 J ND 20-Oct-14 0.47 1.0 ND 0.69 J 0.81 J ND ND 18-May-15 0.47 1.0 ND ND 0.66 J ND ND 7-Dec-15 0.47 1.0 ND ND 0.71 J ND ND 2-May-16 0.47 1.0 ND ND 0.55 J ND ND 12-Dec-16 0.47 1.0 ND 0.51 J 0.65 J ND ND 26-Jun-17 0.47 1.0 ND ND 0.60 J ND ND 14-Dec-17 0.47 1.0 ND ND 0.57 J ND ND 14-May-18 0.47 1.0 ND ND ND ND ND 6-May-19 0.34 1.0 ND ND 6.0 ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 26 of 28 TABLE A2-2: Historical Groundwater Constituents Analyte Sample Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks Toluene 19-Nov-09 0.26 1.0 ND ND ND 0.49 J ND NC 2L = 6,000 pg/L (01/01/10) 14-Jun-10 0.26 1.0 1.1 ND ND ND ND 29-Nov-10 0.26 1.0 ND ND ND ND ND 31-May-11 0.26 1.0 ND ND ND ND ND 19-Dec-11 0.26 1.0 ND ND ND ND ND 30-May-12 0.26 1.0 ND ND ND ND ND 3-Dec-12 0.26 1.0 ND ND ND ND ND 10-Jun-13 0.26 1.0 ND ND ND ND ND 28-Oct-13 0.26 1.0 ND ND ND ND ND 5-May-14 0.26 1.0 ND ND ND ND ND 20-Oct-14 0.26 1.0 ND ND ND ND ND 18-May-15 0.26 1.0 ND ND ND ND ND 7-Dec-15 0.26 1.0 ND ND ND ND ND 2-May-16 0.26 1.0 ND ND ND ND ND 12-Dec-16 0.26 1.0 ND ND ND ND ND 26-Jun-17 0.26 1.0 ND ND ND ND ND 14-Dec-17 0.26 1.0 ND ND ND ND ND 14-May-18 0.26 1.0 ND ND ND ND ND 6-May-19 0.31 1.0 ND ND ND ND ND Vinyl Chloride 12-May-97 NR 5 ND ND 3.1 J NI ND 2-May-00 NR 10 ND ND ND NI ND 8-Nov-00 NR 10 ND ND ND NI ND 31-May-01 NR 10 ND ND ND NI ND 6-Nov-01 NR 10 ND ND ND NI ND 21-May-02 NR 10 ND ND ND NI ND 13-Nov-02 NR 10 ND ND ND NI ND 13-May-03 NR 10 ND ND ND NI ND 18-Nov-03 NR 10 ND ND ND ND ND 4-May-04 NR 10 ND ND ND ND ND 9-Nov-04 NR 10 ND ND ND ND ND 25-May-05 NR 10 ND ND ND ND ND 1-Nov-05 NR 10 ND ND ND ND ND 23-May-06 NR 10 ND ND ND ND ND 1-Nov-06 NR 10 ND ND ND ND ND 29-May-07 NR 1 1.8 ND 1.3 2.0 ND NC 2L = 0.015 pg/L (10/23/07) 27-Nov-07 NR 1 0.75 J ND 0.69 J ND ND 27-May-08 0.62 1.0 1.3 ND 1.0 ND ND 4-Nov-08 0.62 1.0 0.67 J ND 1.0 ND ND 1-Jun-09 0.62 1.0 1.4 Dry 0.83 J ND ND 19-Nov-09 0.62 1.0 ND ND ND 1.6 ND NC 2L = 0.03 pg/L (01/01/10) 14-Jun-10 0.62 1.0 1.3 ND 1.3 0.67 J ND 29-Nov-10 0.62 1.0 1.1 0.63 J 1.3 0.65 J ND 31-May-11 0.62 1.0 1.3 ND 1.0 0.81 J ND 19-Dec-11 0.62 1.0 1.2 ND 0.84 J ND ND 30-May-12 0.62 1.0 2.1 ND ND ND ND 3-Dec-12 0.62 1.0 ND ND ND ND ND 10-Jun-13 0.62 1.0 1.4 ND 0.86 J ND ND 28-Oct-13 0.62 1.0 0.64 J ND ND ND ND 5-May-14 0.62 1.0 0.65 J ND 0.76 J ND ND 20-Oct-14 0.62 1.0 ND ND ND ND ND 18-May-15 0.62 1.0 ND ND ND ND ND 7-Dec-15 0.62 1.0 1 ND ND ND ND 2-May-16 0.62 1.0 ND ND ND ND ND 12-Dec-16 0.62 1.0 ND ND ND ND ND 26-Jun-17 0.62 1.0 ND ND 0.63 J ND ND 14-Dec-17 0.62 1.0 0.69 J ND 0.71 J ND ND 14-May-18 0.62 1.0 ND ND ND ND ND 6-May-19 0.60 1.0 ND ND 1.4 ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 27 of 28 TABLE A2-2: Historical Groundwater Constituents Sample Analyte Collection Date DL RL MW-1 MW-2 MW-3 AMW-1 Blanks Xylene (Total) 28-Apr-94 NR 5 5.1 15.0 ND NI ND 8-Nov-00 NR 5 ND ND ND NI ND 1-Oct-99 NR 5 ND 5.9 ND NI ND NC 2L = 530 pg/L (10/23/07) 2-May-00 NR 5 ND ND ND NI ND 31-May-01 NR 5 ND ND ND NI ND NC 2L = 500 pg/L (01/01/10) 6-Nov-01 NR 5 ND ND ND NI ND 21-May-02 NR 5 ND ND ND NI ND 13-Nov-02 NR 5 ND ND ND NI ND 13-May-03 NR 5 ND ND ND NI ND 18-Nov-03 NR 5 ND ND ND ND ND 4-May-04 NR 5 ND ND ND ND ND 9-Nov-04 NR 5 ND ND ND ND ND 25-May-05 NR 5 ND ND ND ND ND 1-Nov-05 NR 5 ND ND ND ND ND 23-May-06 NR 10 ND ND ND ND ND 1-Nov-06 NR 10 ND ND ND ND ND 29-May-07 NR 4 ND 1.3 J ND ND ND 27-Nov-07 NR 5 ND 1.4 J ND ND ND 27-May-08 0.89 10.0 ND 1.5 J ND ND ND 4-Nov-08 0.66 10.0 ND 1.3 J ND ND ND NC 2L = 530 pg/L (10/23/07) 1-Jun-09 0.66 2.0 ND Dry ND ND ND 19-Nov-09 0.66 2.0 ND ND ND ND ND NC 2L = 500 pg/L (01/01/10) 14-Jun-10 0.66 2.0 ND 3.1 ND ND ND 29-Nov-10 0.66 2.0 ND 2.3 ND ND ND 31-May-11 0.66 2.0 ND 0.80 J ND ND ND 19-Dec-11 0.66 2.0 ND 0.89 J ND ND ND 30-May-12 0.66 2.0 ND ND ND ND ND 3-Dec-12 0.66 2.0 ND ND ND ND ND 10-Jun-13 0.66 5.0 ND ND ND ND ND 28-Oct-13 0.66 5.0 ND ND ND ND ND 5-May-14 0.66 5.0 ND ND ND ND ND 20-Oct-14 0.66 5.0 ND ND ND ND ND 18-May-15 0.66 5.0 ND ND ND ND ND 7-Dec-15 0.66 5.0 ND ND ND ND ND 2-May-16 0.66 5.0 ND ND ND ND ND 12-Dec-16 0.66 5.0 ND ND ND ND ND 26-Jun-17 0.66 5.0 ND ND ND ND ND 14-Dec-17 0.66 5.0 ND ND ND ND ND 14-May-18 0.66 5.0 ND ND ND ND ND 6-May-19 1.50 2.0 ND 17.2 ND ND ND 1,4 Dioxane (p-Dioxane) 6-May-19 1.2 2 ND 2.7 33.1 1.9 J ND NC 2L = 3 pg/L Chloroethane 6-May-19 0.5 1 --- 1.7 ND --- ND Notes: RL = Reporting Limit (Lab. Reporting Limit for September 1994 - May 1999; NC PQL for October 1999 - December 2006; and Solid Waste Section Reporting Limit (SWSL) for December 2006 - 2017; NC PQL for 2018 - present ). DL = Laboratory detection limit ND = Not Detected at or above the RL (prior to Dec. 2006) or the DL (after Dec. 2006). NA = No data available. NR = Not reported. NI = Not installed. NE = Not established. J = Estimated concentration less than the RL but greater than the DL. B = Blank -Qualified (Concentration suspected to reflect laboratory or field contamination). NC2L = North Carolina 2L Groundwater Standards (15A NCAC 2L). IMAC = NC Interim Maximum Allowable Concentration. Bold values are greater than the NC2L Standards or IMAC. Historical data between 1994-1999 availible upon request Burke County -East Burke La Bella Associates Permit No. 12-02 28 of 28 TABLE A2-3: Historical Surface Water Constituents Sample Collection Analyte Date EPA Method DL RL SW-1 SW-2 Blanks INORGANICS Arsenic 29-May-07 NR 10 Dry 2.3 J ND 27-Nov-07 NR 10 Dry 2.8 J ND NC 2B/EPA NC = 10 pg/L (03/28/08) 27-May-08 2.7 10.0 Dry ND ND 04-Nov-08 2.6 10.0 Dry ND 4.8 J 01-Jun-09 2.6 10.0 Dry ND ND 19-Nov-09 2.7 10.0 ND ND ND NC 2B = 10 ug/L (05/01/07) 14-Jun-10 2.7 10.0 ND 3.3 J ND 29-Nov-10 2.7 10.0 ND ND ND 31-May-11 2.7 10.0 ND ND ND 19-Dec-11 5.0 10.0 Dry ND ND 29-May-12 5.0 10.0 Dry ND ND 03-Dec-12 5.0 10.0 Dry ND ND 10-Jun-13 5.0 10.0 ND ND ND 28-Oct-13 5.0 10.0 ND ND ND 05-May-14 EPA 6010 5.0 10.0 ND ND ND 20-Oct-14 EPA 6010 5.0 10.0 ND ND ND 18-May-15 EPA 6010 2.5 10.0 Dry 3.2 J ND 07-Dec-15 EPA 6010 2.5 10.0 Dry ND ND 02-May-16 EPA 6010 2.5 10.0 Dry ND ND 12-Dec-16 EPA 6010 2.5 10.0 Dry ND ND 26-Jun-17 EPA 6010 5.0 10.0 Dry ND ND 14-May-18 EPA 6010 5.0 10.0 ND ND ND 03-Dec-18 EPA 6010 5.0 10.0 ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 1 of 21 TABLE A2-3: Historical Surface Water Constituents Analyte Sample Collection Date EPA Method DL RL SW-1 SW-2 Blanks Barium Nov-97 NR 100 ND 1000 NA May-98 NR 100 ND ND ND Nov-98 NR 100 ND ND ND May-99 NR 5 18.0 19.0 ND Oct-99 NR 500 ND ND ND May-00 NR 500 ND ND ND Nov-00 NR 500 Dry ND ND May-01 NR 500 Dry ND ND Nov-01 NR 500 Dry ND ND May-02 NR 500 Dry ND ND Nov-02 NR 500 ND ND ND May-03 NR 500 ND ND ND Nov-03 NR 500 ND ND ND May-04 NR 500 Dry ND ND Nov-04 NR 500 ND ND ND May-05 NR 500 Dry ND ND Nov-05 NR 500 Dry ND ND 23-May-06 NR 500 Dry ND ND 01-Nov-06 NR 10 ND ND ND 29-May-07 NR 100 Dry 44.1 J ND 27-Nov-07 NR 100 Dry 46.5 J 0.30 J NC 2B/EPA NC = 1,000 ug/L (03/28/08) 27-May-08 0.2 100 Dry 48.8 J 0.41 J 04-Nov-08 0.20 100 Dry 51.7 B 10.5 J 01-Jun-09 0.20 100 Dry 41.2 B 15.2 J 19-Nov-09 0.20 100 81.4 B 40.5 B 19.8 J NC 2B = 1,000 ug/L (05/01/07) 14-Jun-10 0.20 100 111 39.8 J 0.58 J 29-Nov-10 0.20 100 94.7 J 39.2 J ND 31-May-11 0.20 100 92.9 J 37.6 J ND 19-Dec-11 5.0 100 Dry 38.2 J ND 29-May-12 5.0 100 Dry 38.5 J ND 03-Dec-12 5.0 100 Dry 43.0 J ND 10-Jun-13 5.0 100 21.3 B 86.4 J 13.7 J 28-Oct-13 5.0 100 15.4 J 36.8 J ND 05-May-14 EPA 6010 5.0 100 13.7 J 44.5 J ND 20-Oct-14 EPA 6010 5.0 100 13.3 J 39.8 J ND 18-May-15 EPA 6010 2.5 100 Dry 38.9 J ND 07-Dec-15 EPA 6010 2.5 100 Dry 54.3 J ND 02-May-16 EPA 6010 2.5 100 Dry 41.6 J ND 12-Dec-16 EPA 6010 2.5 100 Dry 45.4 J ND 26-Jun-17 EPA 6010 2.5 100 Dry 53.1 J 2.5 J 14-May-18 EPA 6010 2.5 100 23.2 J 41.9 J ND 03-Dec-18 EPA 6010 2.5 5 39.1 49.3 ND Burke County -East Burke La Bella Associates Permit No. 12-02 2 of 21 TABLE A2-3: Historical Surface Water Constituents Analyte Sample Collection Date EPA Method DL RL SW-1 SW-2 Blanks Beryllium Nov-02 NR 2 3.2 3.6 ND May-03 NR 2 ND ND ND Nov-03 NR 2 ND ND ND May-04 NR 2 Dry ND ND Nov-04 NR 2 ND ND ND May-05 NR 2 Dry ND ND Nov-05 NR 2 Dry ND ND 23-May-06 NR 2 Dry ND ND 01-Nov-06 NR 10 ND ND ND 29-May-07 NR 1 Dry ND ND 27-Nov-07 NR 1 Dry ND ND NC 2B/EPA NC = 6.5 ug/L (03/28/08) 27-May-08 0.1 1.0 Dry N D N D 04-Nov-08 0.10 1.0 Dry ND ND 01-Jun-09 0.10 1.0 Dry ND ND 19-Nov-09 0.10 1.0 ND ND ND NC 2B = NE ug/L (05/01/07) 14-Jun-10 0.10 1.0 ND ND ND 29-Nov-10 0.10 1.0 ND ND ND 31-May-11 0.10 1.0 ND ND ND 19-Dec-11 1.0 1.0 Dry ND ND 29-May-12 1.0 1.0 Dry ND ND 03-Dec-12 1.0 1.0 Dry ND ND 10-Jun-13 1.0 1.0 ND ND ND 28-Oct-13 1.0 1.0 ND ND ND 05-May-14 EPA 6010 1.0 1.0 ND ND ND 20-Oct-14 EPA 6010 1.0 1.0 ND ND ND 18-May-15 EPA 6010 0.5 1.0 Dry ND ND 07-Dec-15 EPA 6010 0.5 1.0 Dry ND ND 02-May-16 EPA 6010 0.5 1.0 Dry ND ND 12-Dec-16 EPA 6010 0.5 1.0 Dry ND ND 26-Jun-17 EPA 6010 0.5 1.0 Dry ND ND 14-May-18 EPA 6010 0.5 1.0 ND ND ND 03-Dec-18 EPA 6010 0.5 1.0 ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 3 of 21 TABLE A2-3: Historical Surface Water Constituents Analyte Sample Collection Date EPA Method DL RL SW-1 SW-2 Blanks Cadmium Oct-99 NR 1 ND 1.0 ND May-00 NR 1 ND ND ND Nov-00 NR 1 Dry ND ND May-01 NR 1 Dry ND ND Nov-01 NR 1 Dry ND ND May-02 NR 1 Dry 1.0 ND Nov-02 NR 1 1.2 1.5 ND May-03 NR 1 ND ND ND Nov-03 NR 1 ND ND ND May-04 NR 1 Dry ND ND Nov-04 NR 1 ND ND ND May-05 NR 1 Dry ND ND Nov-05 NR 1 Dry ND ND 23-May-06 NR 1 Dry ND ND 01-Nov-06 NR 10 ND ND ND 29-May-07 NR 1 Dry ND ND 27-Nov-07 NR 1 Dry ND ND NC 2B/EPA NC = 2 Ng/L (03/28/08) 27-May-08 0.5 1.0 Dry ND ND 04-Nov-08 0.50 1.0 Dry ND ND 01-Jun-09 0.50 1.0 Dry ND ND 19-Nov-09 0.50 1.0 ND ND ND NC 2B = NE ug/L (05/01/07) 14-Jun-10 0.50 1.0 ND ND ND 29-Nov-10 0.50 1.0 ND ND ND 31-May-11 0.50 1.0 ND ND ND 19-Dec-11 1.0 1.0 Dry ND ND 29-May-12 1.0 1.0 Dry ND ND 03-Dec-12 1.0 1.0 Dry ND ND 10-Jun-13 1.0 1.0 ND ND ND 28-Oct-13 1.0 1.0 ND ND ND 05-May-14 EPA 6010 1.0 1.0 ND ND ND 20-Oct-14 EPA 6010 1.0 1.0 ND ND ND 18-May-15 EPA 6010 0.5 1.0 Dry ND ND 07-Dec-15 EPA 6010 0.5 1.0 Dry ND ND 02-May-16 EPA 6010 0.5 1.0 Dry ND ND 12-Dec-16 EPA 6010 0.5 1.0 Dry ND ND 26-Jun-17 EPA 6010 0.5 1.0 Dry ND ND 14-May-18 EPA 6010 0.5 1.0 ND ND ND 03-Dec-18 EPA 6010 0.5 1.0 ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 4 of 21 TABLE A2-3: Historical Surface Water Constituents Analyte Sample Collection Date EPA Method DL RL SW-1 SW-2 Blanks Chromium May-97 NR 1 2.0 1.0 ND Nov-97 NR 1 ND ND NA May-98 NR 1 ND ND ND Nov-98 NR 1 ND ND ND May-99 NR 5 ND ND ND Oct-99 NR 10 ND ND ND May-00 NR 10 ND ND ND Nov-00 NR 10 Dry ND ND May-01 NR 10 Dry ND ND Nov-01 NR 10 Dry ND ND May-02 NR 10 Dry ND ND Nov-02 NR 10 ND ND ND May-03 NR 10 ND ND ND Nov-03 NR 10 ND ND ND May-04 NR 10 Dry ND ND Nov-04 NR 10 ND ND ND May-05 NR 10 Dry ND ND Nov-05 NR 10 Dry ND ND 23-May-06 NR 10 Dry ND ND 01-Nov-06 NR 10 ND ND ND 29-May-07 NR 10 Dry ND ND 27-Nov-07 NR 10 Dry ND ND NC 2B/EPA NC = 50 pg/L (03/28/08) 27-May-08 0.4 10.0 Dry ND 0.85 J 04-Nov-08 0.40 10.0 Dry ND ND 01-Jun-09 0.40 10.0 Dry ND ND NC 2B/EPA NC = 20 pg/L (02/05/10) 19-Nov-09 0.40 10.0 0.48 B ND 1.1 J NC 2B = 20 pg/L (05/01/07) 14-Jun-10 0.40 10.0 7 J 0.42 J ND 29-Nov-10 0.40 10.0 ND ND ND 31-May-11 0.40 10.0 1.2 B 1.2 B 0.73 J 19-Dec-11 5.0 10.0 Dry ND ND 29-May-12 5.0 10.0 Dry ND ND 03-Dec-12 5.0 10.0 Dry ND ND 10-Jun-13 5.0 10.0 ND 16.7 ND 28-Oct-13 5.0 10.0 ND ND ND 05-May-14 EPA 6010 5.0 10.0 ND ND ND 20-Oct-14 EPA 6010 5.0 10.0 ND ND ND 18-May-15 EPA 6010 2.5 10.0 Dry ND ND 07-Dec-15 EPA 6010 2.5 10.0 Dry ND ND 02-May-16 EPA 6010 2.5 10.0 Dry ND ND 12-Dec-16 EPA 6010 2.5 10.0 Dry ND ND 26-Jun-17 EPA 6010 2.5 10.0 Dry ND ND 14-May-18 EPA 6010 2.5 10.0 ND ND ND 03-Dec-18 EPA 6010 2.5 5.0 ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 5 of 21 TABLE A2-3: Historical Surface Water Constituents Analyte Sample Collection Date EPA Method DL RL SW-1 SW-2 Blanks Cobalt May-98 NR 1.0 ND 3.0 ND Nov-98 NR 1.0 ND ND ND May-99 NR 5.0 ND ND ND Oct-99 NR 10 ND ND ND May-00 NR 10 ND ND ND Nov-00 NR 10 Dry ND ND May-01 NR 10 Dry ND ND Nov-01 NR 10 Dry ND ND May-02 NR 10 Dry ND NA Nov-02 NR 10 ND ND ND May-03 NR 10 23.0 ND ND Nov-03 NR 10 34.0 10.0 ND May-04 NR 10 Dry 10.0 ND Nov-04 NR 10 16.0 12.0 ND May-05 NR 10 Dry ND ND Nov-05 NR 10 Dry 11.0 ND 23-May-06 NR 10 Dry 12.4 ND 06-Nov-06 NR 10 17.5 ND ND 29-May-07 NR 10 Dry 10.7 ND 27-Nov-07 NR 10 Dry 10.4 ND INC 2B/EPA NC = 190 ug/L (03/28/08) 27-May-08 0.6 10.0 Dry 11.3 ND 05-Nov-08 0.60 10.0 Dry 14.9 B 3.5 J 01-Jun-09 0.60 10.0 Dry 15.0 B 3.3 J NC 2B = NE ug/L (05/01/07) 19-Nov-09 0.60 10.0 ND 5.5 J ND 14-Jun-10 0.60 10.0 64.4 11.0 ND 29-Nov-10 0.60 10.0 54.1 10.3 ND 31-May-11 0.60 10.0 23.6 8.1 J ND 19-Dec-11 5.0 10.0 Dry 8.2 J ND 29-May-12 5.0 10.0 Dry 8.9 J ND 03-Dec-12 5.0 10.0 Dry 11.7 ND 10-Jun-13 5.0 10.0 ND 18.2 ND 28-Oct-13 5.0 10.0 ND 11.4 ND 05-May-14 EPA6010 5.0 10.0 ND 6.9 J ND 20-Oct-14 EPA6010 5.0 10.0 ND 8.2 J ND 18-May-15 EPA6010 2.5 10.0 Dry 8.5 J ND 07-Dec-15 EPA6010 2.5 10.0 Dry 6.2 J ND 02-May-16 EPA6010 2.5 10.0 Dry 6.3 J ND 12-Dec-16 EPA6010 2.5 10.0 Dry 9.2 J ND 26-Jun-17 EPA6010 2.5 10.0 Dry 10.0 J ND 14-May-18 EPA6010 2.5 10.0 ND 8.5 J ND 03-Dec-18 EPA 6010 2.5 5.0 2.7 J 7.4 ND 10D 2.5 5.0 3.5 Burke County -East Burke La Bella Associates Permit No. 12-02 6 of 21 TABLE A2-3: Historical Surface Water Constituents Analyte Sample Collection Date EPA Method DL RL SW-1 SW-2 Blanks Copper May-97 NR 10 40.0 ND ND Nov-97 NR 10 ND ND ND May-98 NR 10 ND ND ND Nov-98 NR 10 ND ND ND May-99 NR 5 ND ND ND Oct-99 NR 200 ND ND ND May-00 NR 200 ND ND ND Nov-00 NR 200 Dry ND ND May-01 NR 200 Dry ND ND Nov-01 NR 200 Dry ND ND May-02 NR 200 Dry ND ND Nov-02 NR 200 ND ND ND May-03 NR 200 ND ND ND Nov-03 NR 200 ND ND ND May-04 NR 200 Dry ND ND Nov-04 NR 200 ND ND ND May-05 NR 200 Dry ND ND Nov-05 NR 200 Dry ND ND 23-May-06 NR 200 Dry ND ND 01-Nov-06 NR 10 ND ND ND 29-May-07 NR 10 Dry ND ND 27-Nov-07 NR 10 Dry ND ND NC 2B/EPA NC = 7 Ng/L (03/28/08) 27-May-08 0.3 10.0 Dry ND ND 05-Nov-08 0.30 10.0 Dry ND 0.94 J 01-Jun-09 0.30 10.0 Dry ND ND 19-Nov-09 0.30 10.0 1.1 J ND ND NC 2B = NE ug/L (05/01/07) 14-Jun-10 0.30 10.0 1.9 B ND 3.4 J 29-Nov-10 0.30 10.0 ND ND ND 31-May-11 0.30 10.0 0.47 J ND ND 19-Dec-11 5.0 10.0 Dry ND ND 29-May-12 5.0 10.0 Dry ND ND 03-Dec-12 5.0 10.0 Dry ND ND 10-Jun-13 5.0 10.0 ND 7.7 B 10.8 28-Oct-13 5.0 10.0 ND ND ND 05-May-14 EPA 6010 5.0 10.0 ND ND ND 20-Oct-14 EPA 6010 5.0 10.0 ND ND ND 18-May-15 EPA 6010 2.5 10.0 Dry ND ND 07-Dec-15 EPA 6010 2.5 10.0 Dry ND ND 02-May-16 EPA 6010 2.5 10.0 Dry ND ND 12-Dec-16 EPA 6010 2.5 10.0 Dry ND ND 26-Jun-17 EPA 6010 2.5 10.0 Dry ND ND 14-May-18 EPA 6010 2.5 10.0 ND ND ND 03-Dec-18 EPA 6010 2.5 5.0 ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 7 of 21 TABLE A2-3: Historical Surface Water Constituents Analyte Sample Collection Date EPA Method DL RL SW-1 SW-2 Blanks Lead 29-May-07 NR 10 Dry 2.9 B 6.1 J 27-Nov-07 NR 10 Dry ND ND NC 2B/EPA NC = 25 pg/L (03/28/08) 27-May-08 4 10.0 Dry ND ND 04-Nov-08 4.0 10.0 Dry ND ND 01-Jun-09 4.0 10.0 Dry ND ND 19-Nov-09 4.0 10.0 ND ND ND NC 2B = NE ug/L (05/01/07) 14-Jun-10 4.0 10.0 ND ND ND 29-Nov-10 4.0 10.0 ND ND ND 31-May-11 4.0 10.0 ND ND ND 19-Dec-11 5.0 10.0 Dry ND ND 29-May-12 5.0 10.0 Dry ND ND 03-Dec-12 5.0 10.0 Dry ND ND 10-Jun-13 5.0 10.0 ND 8.7 J ND 28-Oct-13 5.0 10.0 ND ND ND 05-May-14 EPA 6010 5.0 10.0 ND ND ND 20-Oct-14 EPA 6010 5.0 10.0 ND ND ND 18-May-15 EPA 6010 2.5 10.0 Dry ND ND 07-Dec-15 EPA 6010 2.5 10.0 Dry ND ND 02-May-16 EPA 6010 2.5 10.0 Dry ND ND 12-Dec-16 EPA 6010 2.5 10.0 Dry ND ND 26-Jun-17 EPA 6010 2.5 10.0 Dry ND ND 14-May-18 EPA 6010 2.5 10.0 ND ND ND 03-Dec-18 EPA 6010 2.5 5.0 ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 8 of 21 TABLE A2-3: Historical Surface Water Constituents Analyte Sample Collection Date EPA Method DL RL SW-1 SW-2 Blanks Nickel May-97 NR 50 4500 140 ND Nov-97 NR 50 ND ND ND May-98 NR 50 ND ND ND Nov-98 NR 50 ND ND ND May-99 NR 5 ND ND ND Oct-99 NR 50 ND ND ND May-00 NR 50 ND ND ND Nov-00 NR 50 Dry ND ND May-01 NR 50 Dry ND ND Nov-01 NR 50 Dry ND ND May-02 NR 50 Dry ND ND Nov-02 NR 50 ND ND ND May-03 NR 50 ND ND ND Nov-03 NR 50 ND ND ND May-04 NR 50 Dry ND ND Nov-04 NR 50 ND ND ND May-05 NR 50 Dry ND ND Nov-05 NR 50 Dry ND ND 23-May-06 NR 50 Dry ND ND 06-Nov-06 NR 50 ND ND ND 29-May-07 NR 50 Dry 3.7 J ND 27-Nov-07 NR 50 Dry 4.3 J ND NC 2B/EPA NC = 25 pg/L (03/28/08) 27-May-08 1.7 50.0 Dry 6.0 J ND 04-Nov-08 1.7 50.0 Dry 7.9 B 2.2 J 01-Jun-09 1.7 50.0 Dry 4.7 J ND 19-Nov-09 1.7 50.0 4.8 B 3.6 B 2.2 J INC 213 = 25 ug/L (05/01/07) 14-Jun-10 1.7 50.0 14.1 J 3.3 J ND 29-Nov-10 1.7 50.0 5.3 J 2.4 J ND 31-May-11 1.7 50.0 7.6 B 5.2 B 2.3 J 19-Dec-11 5.0 50.0 Dry ND ND 29-May-12 5.0 50.0 Dry ND ND 03-Dec-12 5.0 50.0 Dry ND ND 10-Jun-13 5.0 50.0 ND 12.8 J ND 28-Oct-13 5.0 50.0 ND ND ND 05-May-14 EPA 6010 5.0 50.0 ND ND ND 20-Oct-14 EPA 6010 5.0 50.0 ND ND ND 18-May-15 EPA 6010 2.5 50.0 Dry 4.4 J ND 07-Dec-15 EPA 6010 2.5 50.0 Dry 4.7 J ND 02-May-16 EPA 6010 2.5 50.0 Dry 3.8 J ND 12-Dec-16 EPA 6010 2.5 50.0 Dry 4.8 J ND 26-Jun-17 EPA 6010 2.5 50.0 Dry 5.7 J ND 14-May-18 EPA 6010 2.5 50.0 ND 5 J ND 03-Dec-18 EPA 6010 2.5 5.0 ND 4.3 J ND Burke County -East Burke La Bella Associates Permit No. 12-02 9 of 21 TABLE A2-3: Historical Surface Water Constituents Analyte Sample Collection Date EPA Method DL RL SW-1 SW-2 Blanks Silver 27-May-08 0.1 10.0 Dry 0.11 B 0.14 J 04-Nov-08 0.10 10.0 Dry 0.41 B 0.20 J 01-Jun-09 0.10 10.0 Dry 0.12 J ND 19-Nov-09 0.10 10.0 ND 0.14 J ND NC 2B = NE ug/L (05/01/07) 14-Jun-10 0.10 10.0 ND ND ND 29-Nov-10 0.10 10.0 ND ND ND 31-May-11 0.10 10.0 1.0 J 0.68 J ND 19-Dec-11 5.0 10.0 Dry ND ND 29-May-12 5.0 10.0 Dry ND ND 03-Dec-12 5.0 10.0 Dry ND ND 10-Jun-13 5.0 10.0 ND ND ND 28-Oct-13 5.0 10.0 ND ND ND 05-May-14 EPA 6010 5.0 10.0 ND ND ND 20-Oct-14 EPA 6010 5.0 10.0 ND ND ND 18-May-15 EPA 6010 2.5 10.0 Dry ND ND 07-Dec-15 EPA 6010 2.5 10.0 Dry ND ND 02-May-16 EPA 6010 2.5 10.0 Dry ND ND 12-Dec-16 EPA 6010 2.5 10.0 Dry ND ND 26-Jun-17 EPA 6010 2.5 10.0 Dry ND ND 14-May-18 EPA 6010 2.5 10.0 ND ND ND 03-Dec-18 EPA 6010 2.5 5.0 ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 10 of 21 TABLE A2-3: Historical Surface Water Constituents Analyte Sample Collection Date EPA Method DL RL SW-1 SW-2 Blanks Thallium Nov-97 NR 1 ND 1.0 ND May-98 NR 1 ND ND ND Nov-98 NR 1 ND ND ND May-99 NR 2 ND ND ND Oct-99 NR 10 ND ND ND May-00 NR 10 ND ND ND Nov-00 NR 10 Dry ND ND May-01 NR 10 Dry ND ND Nov-01 NR 10 Dry ND ND May-02 NR 10 Dry ND ND Nov-02 NR 10 ND ND ND May-03 NR 10 ND ND ND Nov-03 NR 10 ND ND ND May-04 NR 10 Dry ND ND Nov-04 NR 10 ND ND ND May-05 NR 10 ND ND ND Nov-05 NR 10 Dry ND ND 23-May-06 NR 10 Dry ND ND 01-Nov-06 NR 10 ND ND ND 29-May-07 NR 5.5 Dry 0.168 J ND 27-Nov-07 NR 5.5 Dry 0.136 J ND NC 2B/EPA NC = 0.24 ug/L (03/28/08) 27-May-08 3 5.5 Dry ND ND 04-Nov-08 3.0 5.5 Dry ND ND 01-Jun-09 3.0 5.5 Dry ND ND 19-Nov-09 3.0 5.5 ND ND ND NC 2B = NE ug/L (05/01/07) 14-Jun-10 3.0 5.5 3.0 J ND ND 29-Nov-10 3.0 5.5 ND ND ND 31-May-11 3.0 5.5 ND ND ND 19-Dec-11 5.4 5.5 Dry ND ND 29-May-12 5.4 5.5 Dry ND ND 03-Dec-12 5.4 5.5 Dry ND ND 10-Jun-13 5.4 5.5 ND ND ND 28-Oct-13 5.4 5.5 ND ND ND 05-May-14 EPA 6010 5.4 5.5 ND ND ND 20-Oct-14 EPA 6010 5.4 5.5 ND ND ND 18-May-15 EPA 6010 5.0 5.5 Dry ND ND 07-Dec-15 EPA 6010 5.0 5.5 Dry ND ND 02-May-16 EPA 6010 5.0 5.5 Dry ND ND 12-Dec-16 EPA 6010 5.0 5.5 Dry ND 5.5 J 26-Jun-17 EPA 6020E 0.0 5.5 Dry 0.12 J ND 14-May-18 EPA 6020 0.5 5.5 ND ND ND 03-Dec-18 EPA 6020E 0.06 0.1 ND 0.11 ND Burke County -East Burke La Bella Associates Permit No. 12-02 11 of 21 TABLE A2-3: Historical Surface Water Constituents Analyte Sample Collection Date EPA Method DL RL SW-1 SW-2 Blanks Vanadium 01-Jun-09 0.20 25.0 Dry 0.24 B 1.2 J NC 2B/EPA NC = NE pg/L (03/28/08) 19-Nov-09 0.20 25.0 0.33 B 0.30 B 0.58 J NC 2B = NE ug/L (05/01/07) 14-Jun-10 0.20 25.0 5.9 J 0.22 B 0.25 J 29-Nov-10 0.20 25.0 ND ND ND 31-May-11 0.20 25.0 ND ND ND 19-Dec-11 5.0 25.0 Dry ND ND 29-May-12 5.0 25.0 Dry ND ND 03-Dec-12 5.0 25.0 Dry ND ND 10-Jun-13 5.0 25.0 ND 21.2 J ND 28-Oct-13 5.0 25.0 ND ND ND 05-May-14 EPA 6010 5.0 25.0 ND ND ND 20-Oct-14 EPA 6010 5.0 25.0 ND ND ND 18-May-15 EPA 6010 2.5 25.0 Dry ND ND 07-Dec-15 EPA 6010 2.5 25.0 Dry ND ND 02-May-16 EPA 6010 2.5 25.0 Dry ND ND 12-Dec-16 EPA 6010 2.5 25.0 Dry ND ND 26-Jun-17 EPA 6010 2.5 25.0 Dry ND ND 14-May-18 EPA 6010 2.5 25.0 ND ND ND 03-Dec-18 EPA 6010 2.5 5.0 ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 12 of 21 TABLE A2-3: Historical Surface Water Constituents Analyte Sample Collection Date EPA Method DL RL SW-1 SW-2 Blanks Zinc Oct-94 NR 10 10.0 10.0 14.0 Jun-95 NR 10 ND ND 12.0 Oct-95 NR 10 NA 46.0 ND Oct-96 NR 10 ND ND NA May-97 NR 10 40.0 10.0 ND Nov-97 NR 10 ND ND NA May-98 NR 10 ND ND ND Nov-98 NR 10 ND ND ND May-99 NR 5 ND ND ND Oct-99 NR 50 ND ND ND May-00 NR 50 ND ND ND Nov-00 NR 50 Dry ND ND May-01 NR 50 Dry ND ND Nov-01 NR 50 Dry ND ND May-02 NR 50 Dry ND ND Nov-02 NR 50 ND ND ND May-03 NR 50 ND ND ND Nov-03 NR 50 ND ND ND May-04 NR 50 Dry ND ND Nov-04 NR 50 ND ND ND May-05 NR 50 Dry ND ND Nov-05 NR 50 Dry ND ND 23-May-06 NR 50 Dry ND ND 01-Nov-06 NR 10 ND ND ND 29-May-07 NR 10 Dry 1.2 B 2.0 J 27-Nov-07 NR 10 Dry ND ND NC 2B/EPA NC = 50 pg/L (03/28/08) 27-May-08 0.4 10.0 Dry 2.3 B 4.8 J 04-Nov-08 0.40 10.0 Dry ND 8.9 J 01-Jun-09 0.40 10.0 Dry 8.2 B 83.0 19-Nov-09 0.40 10.0 9.1 B 31.9 3.5 J NC 2B = NE ug/L (05/01/07) 14-Jun-10 0.40 10.0 18.0 B ND 10.1 29-Nov-10 0.40 10.0 8.3 J 0.44 J ND 31-May-11 0.40 10.0 7.7 B 8.9 B 13.7 19-Dec-11 10.0 10.0 Dry ND ND 29-May-12 10.0 10.0 Dry ND ND 03-Dec-12 10.0 10.0 Dry ND ND 10-Jun-13 10.0 10.0 ND 30.7 B 76.3 28-Oct-13 10.0 10.0 ND ND ND 05-May-14 EPA 6010 10.0 10.0 ND ND ND 20-Oct-14 EPA 6010 10.0 10.0 ND ND ND 18-May-15 EPA 6010 5.0 10.0 Dry ND ND 07-Dec-15 EPA 6010 5.0 10.0 Dry 5.5 B 7.2 J 02-May-16 EPA 6010 5.0 10.0 Dry ND ND 12-Dec-16 EPA 6010 5.0 10.0 Dry ND ND 26-Jun-17 EPA 6010 5.0 10.0 Dry ND ND 14-May-18 EPA 6010 5.0 10.0 ND ND ND 03-Dec-18 EPA 6010 5.0 10.0 ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 13 of 21 TABLE A2-3: Historical Surface Water Constituents Sample Collection Analyte Date EPA Method DL RL SW-1 SW-2 Blanks Organic Compounds Acetone 27-Nov-07 NR 100 Dry 4.4 B 4.3 J NC 2B/EPA NC = 2,000 ug/L (03/28/08) 27-May-08 20 100 Dry ND ND 04-Nov-08 20.0 100 Dry ND ND 01-Jun-09 20.0 100 Dry ND 3.2 J 19-Nov-09 2.2 100 ND ND 3.8 J NC 2B = NE ug/L (05/01/07) 14-Jun-10 2.2 100 5.5 B ND 8.9 J 29-Nov-10 2.2 100 ND ND 2.3 J 31-May-11 2.2 100 5.8 B 2.3 B 3.9 J 19-Dec-11 2.2 100 Dry ND 6.6 J 29-May-12 2.2 100 Dry ND ND 03-Dec-12 10.0 100.0 Dry ND ND 10-Jun-13 10.0 100.0 ND ND ND 28-Oct-13 10.0 100.0 ND ND ND 05-May-14 EPA 8260 10.0 100.0 ND ND ND 20-Oct-14 EPA 8260 10.0 100.0 ND ND ND 18-May-15 EPA 8260 10.0 100.0 Dry ND ND 07-Dec-15 EPA 8260 10.0 100.0 Dry ND ND 02-May-16 EPA 8260 10.0 100.0 Dry ND ND 12-Dec-16 EPA 8260 10.0 100.0 Dry ND ND 26-Jun-17 EPA 8260 10.0 100.0 Dry 20.9 B 23.0 J 14-May-18 EPA 8260 10.0 100.0 ND ND ND 03-Dec-18 EPA 8260 10.0 25.0 ND ND ND Benzene 19-Nov-09 0.25 1.0 3.6 0.76 J ND Resample> 15-Feb-10 0.25 1.0 ND NS ND NC 2B = 1.19 pg/L (05/01/07) 14-Jun-10 0.25 1.0 ND ND ND 29-Nov-10 0.25 1.0 ND ND ND 31-May-11 0.25 1.0 ND ND ND 19-Dec-11 0.25 1.0 Dry ND ND 29-May-12 0.25 1.0 Dry ND ND 03-Dec-12 0.25 1.0 Dry ND ND 10-Jun-13 0.25 1.0 ND ND ND 28-Oct-13 0.25 1.0 ND ND ND 05-May-14 EPA 8260 0.25 1.0 ND ND ND 20-Oct-14 EPA 8260 0.25 1.0 ND ND ND 18-May-15 EPA 8260 0.25 1.0 Dry ND ND 07-Dec-15 EPA 8260 0.25 1.0 Dry ND ND 02-May-16 EPA 8260 0.25 1.0 Dry ND ND 12-Dec-16 EPA 8260 0.25 1.0 Dry ND ND 26-Jun-17 EPA 8260 0.25 1.0 Dry ND ND 14-May-18 EPA 8260 0.25 1.0 ND ND ND 03-Dec-18 EPA 8260 0.25 1.0 ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 14 of 21 TABLE A2-3: Historical Surface Water Constituents Sample Collection Analyte Date EPA Method DL RL SW-1 SW-2 Blanks Chlorobenzene 19-Nov-09 0.23 3.0 0.70 J 0.61 J ND NC 2B/EPA NC = 130 pg/L (03/28/08) 14-Jun-10 0.23 3.0 ND ND ND NC 2B = 488 pg/L (05/01/07) 29-Nov-10 0.23 3.0 ND ND ND 31-May-11 0.23 3.0 ND ND ND 19-Dec-11 0.23 3.0 Dry ND ND 29-May-12 0.23 3.0 Dry ND ND 03-Dec-12 0.23 3.0 Dry ND ND 10-Jun-13 0.23 3.0 ND ND ND 28-Oct-13 0.23 3.0 ND ND ND 05-May-14 EPA 8260 0.23 3.0 ND ND ND 20-Oct-14 EPA 8260 0.23 3.0 ND ND ND 18-May-15 EPA 8260 0.23 3.0 Dry ND ND 07-Dec-15 EPA 8260 0.23 3.0 Dry ND ND 02-May-16 EPA 8260 0.23 3.0 Dry ND ND 12-Dec-16 EPA 8260 0.23 3.0 Dry ND ND 26-Jun-17 EPA 8260 0.23 3.0 Dry ND ND 14-May-18 EPA 8260 0.23 3.0 ND ND ND 03-Dec-18 EPA 8260 0.23 1.0 ND ND I ND 1,4-Dioxane (p-Dioxane) 03-Dec-18 EPA 8260E 1.90 2.0 6.2 10.1 ND 06-May-19 Mod. 1.20 2.0 7.40 1,4-Dichlorobenzene 29-May-07 NR 1 Dry 0.94 J ND 27-Nov-07 NR 1 Dry ND ND NC 2B/EPA NC = 63 pg/L (03/28/08) 27-May-08 0.33 1.0 Dry 0.64 J ND 04-Nov-08 0.33 1.0 Dry 0.96 J ND 01-Jun-09 0.33 1.0 Dry 0.76 J ND 19-Nov-09 0.33 1.0 4.8 4.9 ND NC 2B = 488 pg/L (05/01/07) 14-Jun-10 0.33 1.0 ND 0.63 J ND 29-Nov-10 0.33 1.0 0.78 J ND ND 31-May-11 0.33 1.0 ND 0.62 J ND 19-Dec-11 0.33 1.0 Dry 0.68 J ND 29-May-12 0.33 1.0 Dry 0.58 J ND 03-Dec-12 0.33 1.0 Dry 0.51 J ND 10-Jun-13 0.33 1.0 ND ND ND 28-Oct-13 0.33 1.0 ND 0.55 J ND 05-May-14 EPA 8260 0.33 1.0 ND 0.55 J ND 20-Oct-14 EPA 8260 0.33 1.0 ND 0.64 J ND 18-May-15 EPA 8260 0.33 1.0 Dry 0.57 J ND 07-Dec-15 EPA 6010 0.33 1.0 Dry 0.44 J ND 02-May-16 EPA 8260 0.33 1.0 Dry 0.43 J ND 12-Dec-16 EPA 8260 0.33 1.0 Dry 0.51 J ND 26-Jun-17 EPA 8260 0.33 1.0 Dry ND ND 14-May-18 EPA 8260 0.33 1.0 ND 0.44 J ND 03-Dec-18 EPA 8260 0.33 1.0 ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 15 of 21 TABLE A2-3: Historical Surface Water Constituents Analyte Sample Collection Date EPA Method DL RL SW-1 SW-2 Blanks 1,1-Dichloroethane 29-May-07 NR 5 Dry 2.3 J ND 27-Nov-07 NR 5.0 Dry 0.43 J ND NC 2B/EPA NC = 6,700 ug/L (03/28/08) 27-May-08 0.32 5.0 Dry 0.55 J ND 04-Nov-08 0.32 5.0 Dry 1.2 J ND 01-Jun-09 0.32 5.0 Dry 0.41 J ND 19-Nov-09 0.32 5.0 0.65 J 2.4 J ND NC 2B = NE ug/L (05/01/07) 14-Jun-10 0.32 5.0 ND 0.34 J ND 29-Nov-10 0.32 5.0 ND ND ND 31-May-11 0.32 5.0 ND 0.42 J ND 19-Dec-11 0.32 5.0 Dry 0.37 J ND 29-May-12 0.32 5.0 Dry ND ND 03-Dec-12 0.32 5.0 Dry ND ND 10-Jun-13 0.32 5.0 ND ND ND 28-Oct-13 0.32 5.0 ND ND ND 05-May-14 EPA 8260 0.32 5.0 ND ND ND 20-Oct-14 EPA 8260 0.32 5.0 ND ND ND 18-May-15 EPA 8260 0.32 5.0 Dry ND ND 07-Dec-15 EPA 8260 0.32 5.0 Dry ND ND 02-May-16 EPA 8260 0.32 5.0 Dry ND ND 12-Dec-16 EPA 8260 0.32 5.0 Dry ND ND 26-Jun-17 EPA 8260 0.32 5.0 Dry ND ND 14-May-18 EPA 8260 0.32 5.0 ND ND ND 03-Dec-18 EPA 8260 0.32 1.0 ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 16 of 21 TABLE A2-3: Historical Surface Water Constituents Analyte Sample Collection Date EPA Method DL RL SW-1 SW-2 Blanks cis-1,2-Dichloroethene May-03 NR 5 ND 5.0 ND Jul-03 NR 5 Dry ND ND Nov-03 NR 5 ND ND ND May-04 NR 5 Dry ND ND Nov-04 NR 5 ND ND ND May-05 NR 5 Dry 5.0 ND Resample> Aug-05 NR 5 NS ND NS Nov-05 NR 5 Dry ND ND 23-May-06 NR 5 Dry ND ND 01-Nov-06 NR 5 ND ND ND 29-May-07 NR 5 Dry 6.4 ND 27-Nov-07 NR 5 Dry 10.4 ND NC 2B/EPA NC = 290 Ng/L (03/28/08) 27-May-08 0.19 5.0 Dry 4.2 J N D 04-Nov-08 0.19 5.0 Dry 8.3 ND 01-Jun-09 0.19 5.0 Dry 3.9 J ND 19-Nov-09 0.19 5.0 73.8 21.1 0.26 J NC 2B = NE ug/L (05/01/07) 14-Jun-10 0.19 5.0 ND 3.2 J ND 29-Nov-10 0.19 5.0 3.6 J ND ND 31-May-11 0.19 5.0 ND 3.5 J ND 19-Dec-11 0.19 5.0 Dry 3.4 J ND 29-May-12 0.19 5.0 Dry 2.5 J ND 03-Dec-12 0.19 5.0 Dry 2.5 J ND 10-Jun-13 0.19 5.0 ND ND ND 28-Oct-13 0.19 5.0 ND 2.3 J ND 05-May-14 EPA 8260 0.19 5.0 ND 1.9 J ND 20-Oct-14 EPA 8260 0.19 5.0 ND 2.2 J ND 18-May-15 EPA 8260 0.19 5.0 Dry 1.8 J ND 07-Dec-15 EPA 6010 0.19 5.0 Dry 1.4 J ND 02-May-16 EPA 8260 0.19 5.0 Dry 1.0 J ND 12-Dec-16 EPA 8260 0.19 5.0 Dry 1.9 J ND 26-Jun-17 EPA 8260 0.19 5.0 Dry 1.5 J ND 14-May-18 EPA 8260 0.19 5.0 ND 1.1 J ND 03-Dec-18 EPA 8260 0.19 1.0 ND 0.97 J ND Burke County -East Burke La Bella Associates Permit No. 12-02 17 of 21 TABLE A2-3: Historical Surface Water Constituents Analyte Sample Collection Date EPA Method DL RL SW-1 SW-2 Blanks Methylene Chloride May-97 NR 5 7.0 B ND 6.0 Nov-97 NR 5 ND ND NA May-98 NR 10 ND ND ND Nov-98 NR 5 ND ND ND May-99 NR 5 ND ND ND Oct-99 NR 10 ND ND 21.0 May-00 NR 10 ND ND ND Nov-00 NR 10 Dry ND ND May-01 NR 10 Dry ND ND Nov-01 NR 10 Dry ND ND May-02 NR 10 Dry ND ND Nov-02 NR 10 ND ND ND May-03 NR 10 ND ND ND Nov-03 NR 10 ND ND ND May-04 NR 10 Dry ND ND Nov-04 NR 10 ND ND ND May-05 NR 10 Dry ND ND Nov-05 NR 10 Dry ND ND 23-May-06 NR 10 Dry ND ND 01-Nov-06 NR 10 ND ND ND 29-May-07 NR 1 Dry ND ND 27-Nov-07 NR 1 Dry ND ND NC 2B/EPA NC = 4.6 ug/L (03/28/08) 27-May-08 0.97 2.0 Dry N D 1.5 J 04-Nov-08 0.97 2.0 Dry ND 2.8 01-Jun-09 0.97 2.0 Dry ND ND 19-Nov-09 0.97 2.0 1.6 J ND ND NC 213 = NE ug/L (05/01/07) 14-Jun-10 0.97 2.0 ND ND ND 29-Nov-10 0.97 1.0 ND ND ND 31-May-11 0.97 1.0 ND ND ND 19-Dec-11 0.97 1.0 Dry ND 3.3 29-May-12 0.97 1.0 Dry ND ND 03-Dec-12 0.97 1.0 Dry ND ND 10-Jun-13 0.97 1.0 ND ND ND 28-Oct-13 0.97 1.0 ND ND ND 05-May-14 EPA 8260 0.97 1.0 ND ND 2.6 20-Oct-14 EPA 8260 0.97 1.0 ND ND ND 18-May-15 EPA 8260 0.97 1.0 Dry ND 1.3 07-Dec-15 EPA 8260 0.97 1.0 Dry ND 4.8 02-May-16 EPA 8260 0.97 1.0 Dry ND ND 12-Dec-16 EPA 8260 0.97 1.0 Dry ND ND 26-Jun-17 EPA 8260 0.97 1.0 Dry ND 1.3 14-May-18 EPA 8260 0.97 1.0 ND ND ND 03-Dec-18 EPA 8260 0.97 1.0 ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 18 of 21 TABLE A2-3: Historical Surface Water Constituents Sample Collection Analyte Date EPA Method DL RL SW-1 SW-2 Blanks Tetrachloroethene 19-Nov-09 0.46 1.0 1.5 ND ND NC 2B = 0.07ug/L (5/1/07) Resample> 15-Feb-10 0.46 1.0 ND NS ND NC 2B = 0.07 pg/L (05/01/07) 14-Jun-10 0.46 1.0 ND ND ND 29-Nov-10 0.46 1.0 ND ND ND 31-May-11 0.46 1.0 ND ND ND 19-Dec-11 0.46 1.0 Dry ND 0.77 J 29-May-12 0.46 1.0 Dry ND ND 03-Dec-12 0.46 1.0 Dry ND ND 10-Jun-13 0.46 1.0 ND ND ND 28-Oct-13 0.46 1.0 ND ND ND 05-May-14 EPA 8260 0.46 1.0 ND ND ND 20-Oct-14 EPA 8260 0.46 1.0 ND ND ND 18-May-15 EPA 8260 0.46 1.0 Dry ND ND 07-Dec-15 EPA 6010 0.46 1.0 Dry 0.64 J„ ND 02-May-16 EPA 8260 0.46 1.0 Dry ND ND 12-Dec-16 EPA 8260 0.46 1.0 Dry ND ND 26-Jun-17 EPA 8260 0.46 1.0 Dry ND ND 14-May-18 EPA 8260 0.46 1.0 ND ND ND 03-Dec-18 EPA 8260 0.46 1.0 ND ND ND Trichloroethene 19-Nov-09 0.47 1.0 3.6 1.4 ND Resample> 15-Feb-10 0.47 1.0 ND NS ND NC 2B=2.5 pg/L (5/1/07) 14-Jun-10 0.47 1.0 ND ND ND 29-Nov-10 0.47 1.0 ND ND ND 31-May-11 0.47 1.0 ND ND ND 19-Dec-11 0.47 1.0 Dry ND ND 29-May-12 0.47 1.0 Dry ND ND 03-Dec-12 0.47 1.0 Dry ND ND 10-Jun-13 0.47 1.0 ND ND ND 28-Oct-13 0.47 1.0 ND ND ND 05-May-14 EPA 8260 0.47 1.0 ND ND ND 20-Oct-14 EPA 8260 0.47 1.0 ND ND ND 18-May-15 EPA 8260 0.47 1.0 Dry ND ND 07-Dec-15 EPA 8260 0.47 1.0 Dry ND ND 02-May-16 EPA 8260 0.47 1.0 Dry ND ND 12-Dec-16 EPA 8260 0.47 1.0 Dry ND ND 26-Jun-17 EPA 8260 0.47 1.0 Dry ND ND 14-May-18 EPA 8260 0.47 1.0 ND ND ND 03-Dec-18 EPA 8260 0.47 1.0 ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 19 of 21 TABLE A2-3: Historical Surface Water Constituents Analyte Sample Collection Date EPA Method DL RL SW-1 SW-2 Blanks Vinyl Chloride 19-Nov-09 0.62 1.0 ND 0.74 J ND INC 213 = 0.025 ug/L (05/01/07) 14-Jun-10 0.62 1.0 ND ND ND 29-Nov-10 0.62 1.0 ND ND ND 31-May-11 0.62 1.0 ND ND ND 19-Dec-11 0.62 1.0 Dry ND ND 29-May-12 0.62 1.0 Dry ND ND 03-Dec-12 0.62 1.0 Dry ND ND 10-Jun-13 0.62 1.0 ND ND ND 28-Oct-13 0.62 1.0 ND ND ND 05-May-14 EPA 8260 0.62 1.0 ND ND ND 20-Oct-14 EPA 8260 0.62 1.0 ND ND ND 18-May-15 EPA 8260 0.62 1.0 Dry ND ND 07-Dec-15 EPA 8260 0.62 1.0 Dry ND ND 02-May-16 EPA 8260 0.62 1.0 Dry ND ND 12-Dec-16 EPA 8260 0.62 1.0 Dry ND ND 26-Jun-17 EPA 8260 0.62 1.0 Dry ND ND 14-May-18 EPA 8260 0.62 1.0 ND ND ND 03-Dec-18 EPA 8260 0.62 1.0 ND ND ND Burke County -East Burke La Bella Associates Permit No. 12-02 20 of 21 TABLE A2-3: Historical Surface Water Constituents Analyte Sample Collection Date EPA Method DL RL SW-1 SW-2 Blanks Xylene (Total) 19-Nov-09 0.66 2.0 8.8 ND NO NC 2B = NE pg/L (05/01/07) 14-Jun-10 0.66 2.0 ND ND ND 29-Nov-10 0.66 2.0 ND ND NO 31-May-11 0.66 2.0 ND ND NO 19-Dec-11 0.66 2.0 Dry ND NO 29-May-12 0.66 2.0 Dry ND NO 03-Dec-12 0.66 5.0 Dry ND NO 10-Jun-13 0.66 5.0 ND ND NO 28-Oct-13 0.66 5.0 ND ND NO 05-May-14 EPA 8260 0.66 5.0 ND ND NO 20-Oct-14 EPA 8260 0.66 5.0 ND ND NO 18-May-15 EPA 8260 0.66 5.0 Dry ND NO 07-Dec-15 EPA 8260 0.66 5.0 Dry ND NO 02-May-16 EPA 8260 0.66 5.0 Dry ND NO 12-Dec-16 EPA 8260 0.66 5.0 Dry ND NO 26-Jun-17 EPA 8260 0.66 5.0 Dry ND NO 14-May-18 EPA 8260 0.66 5.0 ND ND NO 03-Dec-18 I EPA 8260 1 0.66 1.0 ND NO NO ND ND Chloroform FEW-7 ND Notes: RL = Reporting Limit (Lab. Reporting Limit for September 1994 - May 1999; NC PQL for October 1999 -December 2006; and SWSL for December 2006 - 2017; NC PQL for 2018- present). DL = Laboratory method deteciton limt. ND = Not Detected at or above the laboratory RL (prior to Dec. 2006) or the DL (after Dec. 2006). NS = Not sampled. NA = No data available. NR = Not reported. J = Estimated concentration less than the RL but greater than the DL. B = Blank -Qualified (Concentration suspected to reflect laboratory or field contamination). NE = Not established. Dry = Surface water point was considered to be dry and no sample collected. Values above the NC 2B are bold. Surface water is classified as Water Supply IV - Highly Developed, Primary Rec., Critical Area. Burke County -East Burke La Bella Associates Permit No. 12-02 21 of 21 TABLE A2-4: Historical Groundwater Field Parameters Parameter Collection Date MW-1 MW-2 MW-3 AMW-1 Well Depth [ft] 50.55 71.05 32.50 7.30 Conductivity 10-Jun-13 123.0 275.0 299 149.1 (at 25°C) [mS/cm] 28-Oct-13 90.1 164.5 228.2 126.2 5-May-14 94.7 209.9 234.1 123.7 20-Oct-14 119.5 186.0 254 189 18-May-15 117.0 250.0 264 135 7-Dec-15 133.0 274.0 287 170 2-May-16 86.0 177.2 241 125.4 12-Dec-16 124.5 254.0 265 176.3 26-Jun-17 126.0 228.0 268 182.3 14-Dec-17 140.0 272.0 283 200 14-May-18 123.0 275.0 299 168 3-Dec-18 96.2 187.6 244.8 124.5 6-May-19 104.0 239.9 266.3 118.90 23-J u I-19 * -- 454.7 464.7 -- pH [standard units] 10-Jun-13 5.97 5.88 5.75 5.64 28-Oct-13 5.18 5.4 5.53 5.85 5-May-14 5.53 5.53 5.61 5.61 20-Oct-14 4.69 5.39 5.49 6.85 18-May-15 5.05 5.55 5.39 6.09 7-Dec-15 5.22 5.57 5.46 6.29 2-May-16 4.79 5.08 5.15 5.55 12-Dec-16 5.46 5.84 5.6 5.94 26-Jun-17 5.51 5.24 5.18 5.61 14-Dec-17 5.54 5.87 5.73 5.95 14-May-18 5.97 5.88 5.75 6.19 3-Dec-18 5.57 5.7 6.03 5.38 6-May-19 5.56 5.84 5.58 5.73 23-Jul-19* -- 5.63 5.19 -- Burke County -East Burke LaBella Associates Permit No. 12-02 1 of 2 TABLE A2-4: Historical Groundwater Field Parameters Parameter Collection Date MW-1 MW-2 MW-3 AMW-1 Temperature [°C] 10-Jun-13 18.7 17.6 17.5 15.4 28-Oct-13 16.8 15.9 16 15.1 5-May-14 18.1 17.9 15.7 13.6 20-Oct-14 16.0 15.3 15.3 16.7 18-May-15 17.9 17.3 16.1 18 7-Dec-15 15.4 14.9 15.9 13.9 2-May-16 17.4 17.2 16.1 15.7 12-Dec-16 16.0 15.6 15.9 12.3 26-Jun-17 17.5 16.6 15.8 18.6 14-Dec-17 17.1 14.7 13.7 10.9 14-May-18 18.7 17.6 17.5 18.2 3-Dec-18 15.1 15.5 16.0 12.5 6-May-19 17.3 17.4 16.8 15.6 23-Jul-19* -- 18.6 16.7 -- Dissolved Oxygen [mg/L] 6-May-19 1.29 2.31 1.35 3.28 23-Jul-19* -- 2.93 0.69 -- Oxidation Reduction Potential [mV] 6-May-19 96.9 69.6 176.0 146.1 23-Jul-19* -- 119.6 147.9 -- Turbidity [NTU] 10-Jun-13 0.92 0.99 4.58 9.8 28-Oct-13 5.11 3.0 4.38 10.11 5-May-14 6.15 25.30 12.33 21.8 20-Oct-14 17.20 18.40 3.49 20.5 18-May-15 6.95 11.00 3.88 6.29 7-Dec-15 4.29 26.20 6.75 7.26 2-May-16 6.63 15.11 14.56 14.23 12-Dec-16 2.32 2.29 5.81 6.49 26-Jun-17 4.07 4.57 11.8 8.67 14-Dec-17 12.75 8.41 15.71 7.09 14-May-18 0.92 0.99 4.58 0.96 3-Dec-18 5.41 8.26 5.98 15.5 6-May-19 1.42 4.07 5.63 11.5 23-Jul-19* -- 3.20 4.41 -- NOTES: C` = degrees Centigrade S.U. = Standard Units pS/cm = microSemens per centimeter NTU = Nephelometric Turbidity Units ft = Feet *= resampling event = data not available or not sampled. Burke County -East Burke LaBella Associates Permit No. 12-02 2 of 2 TABLE A2-5: Historical Surface Water Field Parameters Parameter Collection Date SW-1 SW-2 pH [standard units] 10-Jun-13 6.45 6.78 28-Oct-13 6.31 6.09 5-May-14 6.29 5.5 20-Oct-14 5.84 6.97 18-May-15 - 6.07 7-Dec-15 6.1 2-May-16 5.38 12-Dec-16 6.22 26-Jun-17 - 5.04 14-Dec-17 6.32 5.9 14-May-18 7.43 6.48 3-Dec-18 6.55 6.16 6-May-19 6.26 6.12 Temperature [°C] 10-Jun-13 18.3 19.5 28-Oct-13 13.8 13.7 5-May-14 15.2 14.6 20-Oct-14 14 14.2 18-May-15 - 17.7 7-Dec-15 10.4 2-May-16 16.2 12-Dec-16 8.5 26-Jun-17 - 17.6 14-Dec-17 8.9 9.5 14-May-18 18.8 18.4 3-Dec-18 12.6 12 6-May-19 16.5 16.6 Dissolved Oxygen [mg/L] 6-May-19 5.90 6.32 Oxidation Reduction Potential [mg/L] 6-May-19 145.3 155.3 Turbidity [NTU] 10-Jun-13 16.8 32.7 28-Oct-13 15.21 12.94 5-May-14 9.05 10.57 20-Oct-14 7.18 19.2 18-May-15 - 6.19 7-Dec-15 6.27 2-May-16 11.89 12-Dec-16 13.61 26-Jun-17 - 8.95 14-Dec-17 19.06 10.15 14-May-18 0 0 3-Dec-18 13.9 47.6 6-May-19 15.2 14.4 Conductivity 10-Jun-13 31.5 115.9 (at 25c) [mS/cm] 28-Oct-13 27.5 89.7 5-May-14 26.5 116.1 20-Oct-14 44.2 49.7 18-May-15 - 131 7-Dec-15 171 2-May-16 112.4 12-Dec-16 168.4 26-Jun-17 - 169.8 14-Dec-17 362 300 14-May-18 95 153 3-Dec-18 129 139 6-May-19 127.6 131.2 NOTES: °C= degrees Centigrade S.U.= Standard Units pS/cm= microSemens per centimeter NTU= Nephelometric Turbidity Units ft= Feet - = Dry/Could not sample Burke County -East Burke LaBella Associates Permit No. 12-02 1 of 1